Choose the best answer to complete the following sentences.Give me a call as soon as you arrive at the airport, _________?
A.will you
B.did you
C.do you
D.won't you

Choose the best answer to complete the following sentences.I am the only representative of Vietnam in this competition, ________?
A.not I
B.aren't I
C.amn't I
D.isn't I

Choose the underlined part among A, B, C or D that needs correction.The price of (A) crude oil used to be (B) a great deal lower (C) than now, wasn't it (D)?
A.wasn't it (D)
B.price (A)
C.lower (C)
D.used to be (B)

Choose the best answer to complete the following sentences.I ___ walk when I was less than a year old.
A.am able to
B.can
C.could
D.would be able to

Choose the best answer to complete the following sentences.Maybe the Smiths ____ build a new house next year.
A.are able to
B.could
C.will be able to
D.is able to

Choose the best answer to complete the following sentences.They ________ save three men from the sinking ship.
A.would
B.can
C.could
D.were able to

Choose the best answer to complete the following sentences.______ play professional tennis, you must be extremely fit.
A.Can
B.Could
C.
D.In order

Choose the best answer to complete the following sentences._______ you hear me clearly when I talked to you on the phone last night?
A.Were you able to
B.Were you able to
C.Are you able to
D.Can

Choose the best answer to complete the following sentences.Look at that sign! You ___ walk on the grass.
A.couldn't
B.can't
C.aren't able to
D.weren't able to

Choose the best answer to complete the following sentences.In the past pigeons _______ to carry messages.
A.were able to use
B.could be used
C.were able to be used
D.could use