— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
— Oh, dear ! She ______ a lot of difficulties !
| A．may go through | B．might go through |
| C．ought to have gone through | D．must have gone through |
—What happened to the young trees we planted?
—The treeswell, but I didn't water them.
| A．might grow | B．needn't have grown |
| C．would grow | D．would have grown |
—Has your son come back from abroad for the winter vacation?
—Yes. But he stayed at home for only a week. Now heback to college.
| A．went | B．has gone | C．was going | D．will go |
the numbers in employment, the hotel industry was the second largest industry in this country last year.
| A．In spite of | B．ln case of | C．In terms of | D．In praise of |
—Mum, I can't see any point in studying hard.
—Come on. dear,Years of hard study will surelyin your future career.
| A．make sure | B．pay off | C．bring back | D．pay back |
At that moment, I was just standing by the window in my room,I could see what was occurring on the street.
| A．from which | B．from whose | C．from that | D．from where |