He (not visit)______ his grandparents since he (leave)_______ his hometown.
A.did not visit - left
B.has not visited - has left
C.has not visited - left
D.does not visited - leaves

______(1)
A.refusal
B.refuse
C.refusing
D.refused

_______(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