—If you have any trouble, be sure to call me.
—__________________________.
| A．I’m glad to hear that. |
| B．I will. Thank you very much. |
| C．I have no trouble. |
| D．I will think it over. |
--Where is your father?
--He ________ Shanghai. He’ll be back next week.
| A．has gone to | B．has been to |
| C．have gone to | D．have been to |
There is nobody in the room,________?
| A．isn’t it | B．isn’t there |
| C．is there | D．is it |
Tom asked my friend ________.
| A．where was he from |
| B．that the earth is bigger than the moon |
| C．when did he came back |
| D．not to be so angry |
You must be very tired. Why not ________ a rest?
| A．to stop to have | B．to stop having |
| C．stop to have | D．stop having |
--What were you doing at 9 o’clock last Sunday morning?
--I ________.
| A．did my homework | B．am doing my homework |
| C．do my homework | D．was doing my homework |