—When did you last see Shelly?
—On Sunday of last December at celebration of her 40th wedding anniversary．
| A．不填； the | B．a: 不填 | C．the: a | D．a; the |
I won’t call you, ________ something unexpected happens.
| A．unless | B．whether | C．because | D．while |
---The last one __________________ pays the meal.
---Agreed!
| A．arrived | B．arrives | C．to arrive | D．arriving |
---It’s a long time since I saw my sister.
---_______________ her this weekend?
| A．Why not visit | B．why not to visit |
| C．Why not visiting | D．Why don’t visit |
The manager suggested an earlier date ____________ the meeting.
| A．on | B．for | C．about | D．with |
Some pre-school children go to a day care center, __________ they learn simple games and songs.
| A．then | B．there | C．while | D．where |