39. _______ is certain, people’s living conditions in China have improved a lot since the 1980s.
| A．It | B．As | C．what | D．Which |
It will be quite a long time______she is back again, so don’t be too cross with her.
| A．that | B．since | C．before | D．until |
Mr Green drove slowly on the way home until he reached the high way, ______the speed limit was 60 miles per hour.
| A．because | B．which | C．where | D．that |
— If you don’t like the white shirt, take the light yellow one.
— OK, but do you have ______ size in light yellow? This one is a bit tight for me.
| A．a big | B．a bigger | C．the bigger | D．the big |
Let us not waste ______ time we have left.
| A．the little | B．little | C．a little | D．a little more |
The news about the terrible flood there greatly discouraged ______ there for a sight-seeing.
| A．us from going | B．us to go | C．our going | D．our to go |