________ he told the truth this time, nobody was willing to believe him because he often told lies.
| A．When | B．Because | C．Although | D．Unless |
—Can you play foot ball？
—________．It’s hard．
| A．Yes，I can |
| B．No．I can’t |
| C．No，I can |
| D．Yes，I can’t |
In some Western countries shops are closed ________ weekends．
| A．in |
| B．to |
| C．at |
| D．with |
Our teacher always helps us ________ our English．
| A．for |
| B．into |
| C．on |
| D．with |
The desk is not dirty．You ________ clean it．
| A．mustn’t |
| B．shouldn’t |
| C．needn’t |
| D．can’t |
He is very good ________ the children．
| A．for |
| B．to |
| C．at |
| D．with |