—There aren’t any toys in our suitcase．Where have you put them?
—Oh, no．That old lady sitting next to us ______ have taken ours by mistake.
| A．must | B．could | C．should | D．would |
—— I will come to attend your lecture at 10：00 tomorrow.
—— I’m sorry, by then my lecture will have ended and I＿＿＿my guests in my office.
| A．is being met | B．will meet |
| C．will be meeting | D．will have met |
—— Has Jack finished his homework yet?
—— I have no idea； he ＿＿＿it this morning.
| A．was doing | B．had been doing |
| C．has done | D．did |
.The traffic in our city is already good and it ＿＿＿even better.
| A．gets | B．got | C．has got | D．is getting |
I’ve finally finished my paper and it ＿＿＿＿＿ me an entire month.
| A．takes | B．took | C．was taken | D．had taken |
Good heavens! There you are! We＿＿＿anxious about you, and we ＿＿＿you back throughout the night.
| A．are； expect | B．were； had expected |
| C．have been； were expecting | D．are； were expecting |