Our class adviser doesn’t doubt，in any case.___.we can overcome the difficulties in our study.Healways gives us a confident smile.
| A．how | B．whether | C．that | D．why |
It rained heavily outside，________made us stay at home all day.
| A．which | B．why | C．that | D．what |
You can't get the expensive house________you have lots of money.
| A．if | B．unless | C．when | D．since |
The sportsman ________save a drowning boy that afternoon；the boy's parents appreciated him very much.
| A．might | B．could | C．was able to | D．must |
—Why are you unhappy today?
—The watch，which I ________the other day，is out of order again.
| A．had repaired | B．had repair |
| C．had it repaired | D．had repaired it |
Sarah looked at ______finished painting with ________satisfaction.
| A．/；a | B．a；the | C．the；/ | D．the；a |