—Could you tell me the____ of making such tasty cakes?
— Well, I just follow the directons in the cookbook.
| A．feature | B．plan | C．cost | D．trick |
-----She looks very happy. She have passed the exam.
------I guess so. It’s not difficult after all.
| A．should | B．could | C．must | D．might |
----Did Peter fix the computer himself?
-----He , because he does know much about computers.
| A．has it fixed | B．had fixed it | C．had it fixed |
D．fixed it |
.your rotten idea, we went the long way .
| A．Thanks to | B．Due to | C．Owing to | D．Because |
year after year , tigers are becoming fewer and fewer .
| A．Having been killed | B．Killing | C．Killed | D．Having killed |
It was the training _____ he had as a young man _____ made him such a good engineer.
| A．what; what | B．which; that | C．that; which | D．that; what |