Heavy smog blankets Beijing． ,city authorities start using its new smog warning system．
| A．In turn | B．In time |
| C．In response | D．In return |
The Group of Eight (G8)______ the eight richest countries in the world.
| A．is consisted of | B．is made up of | C．consist of | D．consists in |
---- I stayed awake _______ 12 o’clock to wait for my husband to come back last night.
------ Then you _____have had a good sleep, did you?
| A．until; mustn’t | B．till; can’t | C．before; should | D．when; would |
Drilling oil well was ________ work that he couldn’t finish it by himself.
| A．such difficult | B．such a difficult | C．so difficult a | D．so difficult |
Last week, only two people came to look at the house,________ wanted to buy it.
| A．none of them | B．both of them | C．none of whom | D．neither of whom |
2Was it in the 1969____the American astronaut succeeded____ landing on the moon.
| A．when; on | B．that; on | C．when; in | D．that; in |