I think you’ve got to the point where a change is needed , _____, you’ll fail .
| A．however | B．therefore | C．otherwise | D．besides |
Not only __________ polluted but crowded.
| A．was the city ； were the streets |
| B．the city was；were the streets |
| C．was the city ； the streets were |
| D．the city was ； the streets were |
My parents have __________ us $ 15，000 for the house. Shall we take it?
| A．provided | B．supplied | C．shown | D．offered |
The air company going from bad to worse, the workers __________ hardly enough to make a living.
| A．are paid | B．are paying | C．have paid | D．paid |
In some places women are expected to earn money __________ men work at home and raise their children.
| A．but | B．while | C．because | D．though |
They kept trying __________ they must have known it was hopeless.
| A．if | B．because | C．when | D．where |