_______(3)
A.think
B.thought
C.thoughtful
D.thoughtless

________(5)
A.known
B.know
C.knowing
D.to know

In the history of Nobel Prizes, she was the first woman (award) __ the Economics.
A.to award
B.awarded
C.awarding
D.to be awarded

Choose the best answer from A, B, C or D.
It is usually impossible to tell the difference between________ twins.
A.same
B.similar
C.identical
D.alike

Choose the best answer from A, B, C or D.
Put on this scream to_______ yourself from the sun.
A.protect
B.prevent
C.avoid
D.divert

Choose the best answer from A, B, C or D.
Lan: Let’s go to Cua Lo beach after the exam,______ ?- Hai: Yes, that sounds good.
A.should we
B.shall we
C.shan’t we
D.shouldn’t we

Choose the best answer from A, B, C or D.
The harder you try,______
A.the most success you achieve
B.you achieve the more success
C.the more success you achieve
D.the better you achieve success

According to the passage, approximately how many non-native users of English are there in the world today?
A.a quarter million
B.half a million
C.350 million
D.700 million

Chris will pass his exams, but he has to work hard.
A.If Chris works hard, he will pass his exam.
B.If Chris works hard, he would pass his exam.
C.If Chris worked hard, he will pass his exam.
D.If Chris worked hard, he would pass his exam.

He can't run as fast as he did.
A.He used run faster than he does.
B.He used to run faster than he does.
C.He used running faster than he does.
D.He used to have run faster than he does.