I can think of many cases _______students obviously knew a lot of English words and expressions but couldn't
write a good essay．
| A．why | B．which | C．as | D．where |
—— Don’t smoke today, honey, it’s three months since you smoked.
—— OK, I ______.
| A．do | B．don’t | C．will | D．won’t |
________ the mountains was hard work for them but as they looked around, they could not help screaming.
| A．Climb | B．To climb | C．For climbing | D．They climbed |
It was so bright outdoors that we could see clearly what was happening through the curtains ________ before the window.
| A．hanged | B．hung | C．hanging | D．hang |
—— Hey，what’s up !
—— Excuse me for breaking in, _____ I really have some news for you.
| A．and | B．so | C．but | D．yet |
The last thirty years _________ the quick development in almost every field in China.
| A．saw | B．had seen | C．have seen | D．would see |