问题

Follow these tips, and your time spent doing research on the Internet ______ much more worthwhile.

A:was
B:has been
C:will be
D:will have been

正确答案是：

同类题型

There a fashion show tomorrow.

I want to buy a ticket to the movie. — Sorry, we have all the tickets.

____, are you Mr.Green – Yes.

______ —M-A-P.

I hope_____a teacher in the future.