The reason why Malaysia Airline Flight370 disappeared remained_____.
| A．look into | B．to be looked into | C．looking into | D．to look into |
—I’m awfully sorry I can’t go with you. —_____? Haven’t you agreed?
| A．How is it | B．What is it | C．Why don’t you | D．what do you think |
—Something is wrong with my computer again. Could you repair it? —Of course, ___.
| A．another pair of shoes | B．a piece of cake | C．nothing serious | D．let me have a try |
. —Is this Mr White’s office, Mary? —Yes, _____.
| A．that’s all right | B．it doesn’t matter | C．after you | D．please yourself |
. —___ I didn’t hear you clearly. It’s too noisy here. —I was saying that the party was great.
| A．Repeat. | B．Once again | C．Sorry? | D．So what? |
—Now, where is my purse? —_____! We’ll be late for the picnic.
| A．Take your time | B．Don’t worry | C．Come on | D．Take it easy |