There used to be a lot of tall buildings,_________?
| A．didn’t it | B．didn’t there |
| C．wasn’t there | D．did there |
My mother was cooking _______ I got home yesterday.
| A．while | B．as | C．when | D．after |
They found _______very hard to move the stone.
| A．it | B．its | C．this | D．that |
There will be a _______bridge over the river.
| A．2,000-metre-long | B．2,000-metres-long |
| C．2,000 metres long | D．2,000 metre long |
----He always makes a lot of noise.
-------You’d better _______a quiet place_______.
| A．find, study | B．to find, to study | C．to find, study | D．find, to study |
The workers were made ________for ten hours a day.
| A．work | B．worked | C．working | D．to work |