7．Perhaps it will never be known __________ he did with those materials on the incident．
| A．that | B．what | C．which | D．how |
________is well known to everyone，I should say，is that a man becomes learned by asking questions.
| A．Who | B．It |
| C．As | D．What |
It suddenly occurred to him he had left his keys in the office.
| A．whether | B．where | C．which | D．that |
life will continue on the earth for millions of years to come will depend on the problem of pollution can be solved.
| A．How /whether | B．That/that | C．Whether / if | D．Whether / whether |
________is surprising is that there are so many Chinese restaurants in Toronto.
| A．It | B．That |
| C．Such | D．What |
I hope to do now is go home and have a good rest.
| A．What | B．That | C．Whatever | D．Where |
It was not until dark ___ he was aware of ___ he thought was the correct way to solve the problem.
| A．when; what | B．that; that | C．that; what | D．when; that |
________he referred to in his article was often discussed by many people in the past.
| A．That | B．What |
| C．Whether | D．Where |
It hasn’t been announced ______ the plane is to take off.
| A．where | B．when | C．how | D．why |
young people see and hear in the media helps them to figure out how the world works.
| A．Which | B．That | C．What | D．How |
---It's reported__________the new underground line has been completed.
---Yes, but it hasn't been made clear ________ it's to be opened to traffic.
| A．when; when |
| B．that; that |
| C．when; that |
| D．that; when |
______ that after the ash covered the people who failed to flee the city, their bodies nearly completely______ and disappeared, _________ empty spaces in the ash.
| A．It turned out; broke down; leaving |
| B．As turned out; broke up; which left |
| C．It turned out; broke off; leaving |
| D．What was turned out was; broke down; left |
— Are you in favour of Tom’s suggestion_______ we work around the clock to meet the deadline?
— No．But ______ Jimmy suggested to me sounds practical．
| A．which; what | B．that; that |
| C．which; that | D．that; what |
________ you don’t know is that I spend ________ little time I had with my kids．
| A．That; that | B．What; how |
| C．What; what | D．That; how |
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