问题

you ____________ doing something orhaving something, you must do it or have it

A:are proved
B:did prove
C:were proved
D:was proved

正确答案是：

同类题型

Beijing, the capital of China, is one of _________ cities in the world.

How do you like English —- I like it verymuch, _____ I can’t speak English well.

If we learn to appreciate _____ isnew and different, we will be well-prepared for ____ the future may have instore.

We have just set up a hiking club. And “Never say never!” is our _______.

about your self-drive trip yesterday—Tiring! The road is being widened, and we______________a rough ride