The effects of cigarette smoking _________ been proven to extremely harmful.
A. have B. has C. to have D. having
Đáp án A
Giải thích: N1 of N2, động từ chia theo N1
What time __________ the news on TV?
A. is B. am C. are D. were
Anything __________ better than going to the movies tonight.
A. is B. are C. am D. were
Each of the residents in this community ........... responsible for keeping this park clean.
The weather in the southern states .............. very hot during the summer.
A. get B. have got C. is got D. gets
Neither of the answers .................... correct.
A. are B. is C. be D. have been
The use of credit cards in place of cash ________ increased rapidly in recent years.
A. to have B. have C. has D. having
Some of the milk I bought last night ........... not fresh anymore.
A. is B. is being C. are D. are
Either John or his wife .........breakfast each morning.
A. make B. is making C. makes D. made
Bread and butter .......... what she asks for
A. is B. are C. will be D. have been
A large number of students in this school.......... English quite fluently
A. speaks B. is speaking C. has spoken D. speak
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