— 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 |
——The captain did not leave the sinking ship till the last moment.
——So he was the last man ______ the ship.
A.left | B.leaving | C.to leave | D.to be leaving |
The factory used 65 percent of the raw materials, the rest of which _____ saved for the other purpose.
A.is | B.are | C.was | D.were |
--- The report is difficult to write.
--- You can surf the internet, where you can find _____ information and useful expressions.
A.a lot | B.a good many | C.plenty of | D.a large number of |
The tourist industry has _______ a great number of different jobs.
A.invented | B.developed | C.discovered | D.created |
There was no ______ that she was a good teacher.
A.reason | B.fact | C.doubt | D.wonder |