We should do more such exercises in the future, I think, _____ those we did yesterday.
| A．as | B．like | C．about | D．than |
33. 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 |
32．_____from lightweight materials，the robots are about the size of a human arm or
smaller．
| A．To build | B．Being built | C．Having built | D．Built |
31．The fact that smoking is harmful to health is____most smokers are quite aware of．
| A．what | B．which | C．where | D．That |
30.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 |
29.An example of them is fraud, a crime _______ money is stolen by cheating others.
| A．which | B．that | C．what | D．Where |