—Shall we go for a picnic in the forest park tomorrow？
—Yes，________it rains heavily．
| A．if |
| B．unless |
| C．until |
| D．when |
I didn’t want to talk about that________ the phone.
| A．on | B．in | C．at | D．by |
_______a sport game on the playground next week?
| A．Will there be | B．Will there have |
| C．Will there | D．Will be there |
How much did you______ the house?
| A． pay for | B．cost for |
| C．paid for | D．cost on |
______ foreigners visited Mount Tai one day.
| A．Thousand of | B．Nine thousands |
| C．Nine thousand of | D．Thousands of |
It is important for us ________English well.
| A．to learn | B．learning |
| C．learns | D．learned |