Donald Trump will take office on January 20, 2017 _ Barack Obama leaves the White House.
A. until B. unless C. because D. as soon as
In comic strips, there arc usually bubbles_ speech and thoughts in the pictures.
A. of B. at C. with D. for
The soldiers waited until evening so that they_ attack the enemy under cover of darkness.
A. could B. might C. must D. should
The number of people who ______ cars of their own is increasing.
A. has B. have C. there is D. there are
Peter, welcome to be our new friend. Could you introduce_ to us first?
A. you B. your C. yourself D. yours
We completed the work five days_ time.
A. in B. in the front of C. on D. ahead of
