—It is a mystery and a shock to all who knew him that he____ have taken his own life in this way.
—What a pity, indeed.
| A．must | B．may | C．can | D．should |
—— Was the driving pleasant when you went to Mexico last summer?
—— No, it ＿＿＿＿ for four days when we arrived, so the roads were very muddy.
| A．was raining | B．had been raining | C．would be raining | D．rained |
I used to drink a lot of tea but these days I ＿＿＿coffee.
| A．prefer | B．preferred | C．have preferred | D．am preferring |
—— Can you give me the right answer?
—— Sorry, I＿＿＿＿.Would you repeat that question?
| A．hadn’t listened | B．haven’t listened | C．don’t listen | D．wasn’t listening |
Look at this ! I＿＿＿＿＿some magazines and＿＿＿＿＿＿this letter.
| A．was looking through； found | B．am looking through； find |
| C．looked through； had found | D．had looked through； finding |
The train ＿＿＿＿＿ at the present speed until it reaches the foot of the mountain at about nine o’clock tonight.
| A．went | B．is going | C．goes | D．will be going |