He used to ______ cards, but now he is used to _______ a walk after supper.
| A．play; taking | B．playing; take | C．play; take | D．playing; taking |
---Cheer up! Have another go, OK?
--- _____________．
| A．With pleasure | B．Fine, thank you | C．Good idea | D．Never mind |
Not until he met with the difficulty _______ the importance of group work.
| A．he realized | B．did he realize | C．realized he | D．he didn’t realize |
Mary got the first prize in the National Math Competition, ________, for sure, delighted everyone.
| A．who | B．that | C．this | D．which |
______ he had broken the record, he would be a world-famous runner now.
| A．When | B．Because | C．If | D．Though |
—Was the driving pleasant when you vacationed in Mexico last summer?
—No, it _______ for four days when we arrived, so the roads were very muddy.
| A．has rained | B．had been raining | C．rained | D．has been raining |