—May I remind you that a Mr. Zhang is waiting downstairs, sir?
—Oh, dear. I ________ about it.
| A．forget | B．forgot | C．have forgotten | D．had forgotten |
— Are you cleaning my room, Serena?
— ______. I can’t bear seeing your room in a mess!
| A． You are clever | B．Not at all |
| C．I can’t help it | D．No chance |
Finally he reached a lonely island__ was completely cut off from the outside world.
| A．when | B．where | C．whom | D．which |
My father ____ for Beijing on business tonight.
| A．is about to leave | B．has been leaving |
| C．is leaving | D．would leave |
This is the first time that he your hometown.
| A．visited | B．visits |
| C．had visited | D．has visited |
The hero said he didn’t think twice ____ diving into the freezing river to rescue that child.
| A．before | B．after | C．until | D．when |