—I'm afraid it's going to rain this afternoon.
—________ Look at the dark and cloudy sky.
| A．Not really. | B．Is it? |
| C．Why not? | D．I guess so. |
It is impossible for us to carry the stone statues, all of______ are too heavy.
| A．which | B．them | C．those | D．what |
Almost 100 computers ______to us by that key school since the end of last year.
| A．have given | B．had been given | C．have been given | D．had given |
Every evening the students go to bed at 10:30______ and the lights are turned off.
| A．at once | B．on purpose | C．at present | D．as usual |
--- I am sure you will be happy here once you get to know everyone.
--- ______.
| A．Thank you | B．I hope so | C．My pleasure | D．No problem |
To be honest, I didn’t______ him at first sight. About an hour later, I remembered him.
| A．realize | B．understand | C．see | D．recognize |