We have to be careful with the technology we develop, _________ we could find ourselves facing serious environmental problems.




A.although
B.otherwise
C.whereas
D.however

Rewrite the following sentences and the meaning stays the same.
I haven’t seen my old school friend for 2 years.




A.The last time I saw my old school friend has been 2 years ago
B.The last time I saw my old school friend was 2 years ago.
C.The last time I saw my old school friend is 2 years ago
D.The last time I have seen my old school friend was 2 years ago

Rewrite the following sentences and the meaning stays the same.
Are you against working on Sunday?




A.Do you object to working on Sunday?
B.Do you object to work on Sunday?
C.Do you object to being work on Sunday?
D.Do you object to be work on Sunday?

Make up sentences with the words given.
Lately/not work/hard/as/should/




A.Lately, you hadn’t worked as you should.
B.Lately, you didn't work as you should.
C.Lately, you haven’t worked as you should.
D.Lately, you haven’t been working as you should.

Find the mistakes and correct them in these sentences.
We had better to review this chapter carefully because we will have some questions on it our test.




A.had better to review
B.carefully
C.will have
D.on

Find the mistakes and correct them in these sentences.
The price of oil used to be a great deal lower than now, wasn’t it?




A.of
B.used to be
C.a great deal
D.wasn’t it

It can be inferred from the passage that tourism has caused problems __________.




A.and should be stopped
B.because it is seen as positive
C.but it is thriving
D.although it helps

You mustn't be late for school.




A.Coming late for school is possible.
B.It is a must to be late for school.
C.You needn't come to school late.
D.You aren't allowed to be late for school.

Where is the evergreen put ?




A.In the middle of the living room
B.In the corner of the living room
C.In the middle of the bedroom
D.In the corner of the bedroom

When minerals are used up, _________.




A.they can be restored
B.they are gone forever
C.they can be found soon
D.they can be supplied again