Mr. Black________ Shanghai in a few days. Do you know when the earliest plane ________on Sunday?
| A．leaves for；takes off |
| B．is leaving for；takes off |
| C．is leaving for；is taking off |
| D．leaves for；is taking off |
“It’s twelve o’clock, I think I must be off now.” “Oh, really？ I ______ it at all.”
| A．don’t realize | B．haven’t realized |
| C．didn’t realize | D．hadn’t realized |
“What’s her new telephone number？” “Oh, I _____.”
| A．forget | B．forgot |
| C．had forgotten | D．am forgetting |
“Oh it’s you！ I ________ you.” “I’ve had my hair cut.”
| A．didn’t realize | B．haven’t realized |
| C．didn’t recognize | D．don’t recognized |
“Hey, look where you are going！” “Oh, I’m terribly sorry. _____.”
| A．I’m not noticing | B．I wasn’t noticing |
| C．I haven’t noticed | D．I don’t notice |
“Mr Smith isn’t coming tonight.” “ But he _____.”
| A．promises | B．promised |
| C．will promise | D．had promised |