—Do you think it's going to rain over the weekend？
—_____ .
| A．I don't believe | B．I don't believe it | C．I believe not | D．I believe not so |
Don't ________ your troubles too often.
| A．speak | B．tell |
| C．air | D．ask |
The incomes of skilled workers went up. __________，unskilled workers saw their earnings fall.
| A．Moreover | B．Therefore |
| C．Meanwhile | D．Otherwise |
________ all of them are strong candidates, only one will be chosen for the post.
| A．Since | B．While |
| C．If | D．As |
Nowadays people are more concerned about the environment __________ they live.
| A．what | B．which |
| C．when | D．where |
Tony lent me the money，__________ that I'd do as much for him.
| A．hoping | B．to hope |
| C．hoped | D．having hoped |