问题

The secretary worked late into the night, ___________ a long speech for the international conference. [ ]

A: to prepare
B: prepared
C: preparing
D: was preparing

正确答案是：

同类题型

To put his wife _____ and to guarantee a promise of top secrecy, a husband may claim that alife-threatening assignment is just a business trip.[ ]

None of them have pity on the poor. What shame it is!

I made a fire ____up the room as soon as myfather came in．

Which do you like ___________ , apples or pears — I like pears.

You should have thanked her before you left. — I meant _____, But when I was leaving I couldn’t find her anywhere. [ ]