The twins are so much alike that no one can ________one from the other.
| A．distinguish | B．separate | C．identify | D．recognize |
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 |
The plane ＿＿＿＿＿ at 7：00 p.m., so I have to be at the airport by 6：40 at the latest.
| A．has left | B．is to leave | C．will have left | D．leaves |