revision_tenses( exercises-keys)

Use the proper tense/form of verbs in parentheses. Write your answer in the

space provided

The world is getting warmer and the oceans are rising. Why ……….. this (1.

happen) ......................... One answer is that it could simply be part of a natural

process. After all, there (2. be) ......................... ice ages and long periods of

warmth, so we could just (3. experience) ......................... another warming trend.

This kind of answer (4. have) ......................... more supporters a few years ago.

What scientists now (5. believe) ......................... is that human activity is the

cause. For more than two hundred years, human ……………….. gradually (6.

change) ......................... the atmosphere, mainly as a result of industrial pollution.

We (7. create) ......................... an atmosphere around the earth that, like a giant

glass container, (8. let) ......................... heat from the sun through and then (9.

hold) ......................... it in. …………… temperatures and sea levels (10.

keep) ......................... rising? The general answer is unfortunately yes

Use the proper tense/form of verbs in parentheses. Write your answer in the

space provided

The world is getting warmer and the oceans are rising. Why ……does….. this (1.

happen) ........happen................. One answer is that it could simply be part of a

natural process. After all, there (2. be) ...............is.......... ice ages and long periods

of warmth, so we could just (3. experience) ...experience...................... another

warming trend. This kind of answer (4. have) ........had................. more supporters

a few years ago. What scientists now (5. believe) ....believe..................... is that

human activity is the cause. For more than two hundred years, human ……………has

changed….. gradually (6. change) ......................... the atmosphere, mainly as a

result of industrial pollution. We (7. create) ......create................... an atmosphere

around the earth that, like a giant glass container, (8. let) ..........let............... heat

from the sun through and then (9. hold) ...........hold.............. it in. ……………

temperatures and sea levels (10. keep) ...........keeps.............. rising? The general

answer is unfortunately yes.

Read the following texts carefully and choose the correct tense of the verbs.

I. My friends - Hong and Lien just (return) ... from their holiday in Da Lat.

Before they (leave) ... Quang Ngai, I (give) ... them my aunt's address in Da

Lat in the hope that they (visit) her and her family.

Last Tuesday night, I (come) ... to see them, and they (tell) ... me how much

they (enjoy) ... travelling around Da Lat, and I (look) ... at the colour photos

they (take) ... They also gave me the postcards and presents from my aunt

and said that it (be) a great pleasure for them to meet my relatives.

II. Jane lives in London. She (work) ... as a travel writer for a magazine. She

(go) ... abroad five or six times a year. Last year, she (spend) ... three months

in Asia and she liked it so much that she (not want) .. to come home. Now she

(travel) in South America. She (not speak) ... Spanish very well, but she

(study) ... it at the moment because she (need) ... to talk to local people. She

(read) ... a lot of books in French up to now. Every evening she (write) ...

notes about people and places.

III. "You wont recognize the old town", my ss told me. "Almost everything

(change) ... since you last (see) ... it. They (build) ... a new shopping centre

near the park. The old town hall (destroy) ... by a fire about five year agos.

Thet (build) ... a new one at the moment. They (build) it for three years in

fact, but they (not finish) ... it yet".

I (be) ... back for nearly a month now. And my ss was right. The place looks

very different, but strangely enough it still (feel) ... the same, because the

people that I love are here. I (leave) ... again in a few week's time., but I