________ some students are not aware of is ________ difficult life can be if they are not devoted to study.
| A．That; how | B．Which; what |
| C．What; what | D．What; how |
He got well-prepared for the job interview, for he couldn’t risk the good opportunity______.
| A．to lose | B．losing | C．to be lost | D．being lost |
---Do you think the weather will be all right this summer?
---No, _______ we’re lucky. The newspaper says it’ll be very hot anyway.
| A．unless | B．if | C．though | D．as |
I have no dreams ________ to have a happy life.
| A．rather than | B．more than | C．other than | D．less than |
It was_________ back home after the experiment.
| A．not until midnight did he go | B．until midnight that he didn’t go |
| C．not until midnight that he went | D．until midnight when he didn’t go |
An example of them is fraud, a crime _______ money is stolen by cheating others.
| A．which | B．that | C．what | D．where |