16. There was so much noise produced by the machine outside that the professor had to ______ his voice so that it would not ________.
| A．rise; be drowned | B．lift; drown | C．increase; drown | D．raise; be drowned |
— How do you usually go to work?
— If it is fine, I _______ on foot.
| A．will go | B．go | C．have gone | D．won’t go |
Not only ______ prepare lunch for us, but also _______ clothes for us.
| A．he did , he washed | B．he did , did he wash |
| C．did he , he washed | D．did he, did he wash |
— You know what? Tom wants to be Harry Potter after he graduates from school.
— Are you kidding? He’ll never ______ a person like him.
| A．change | B．turn | C．make | D．get |
-----Tom passed the final exam . ---______, and _______.
| A．So did he , so did | B．So he did , so did you |
| C．He did so, you did so | D．So he did , you did so |
He had decided to give it up, but on ______ second thought, he decided to try ____ 3rd time.
| A．the ; a | B．/ ; / | C．a ; a | D．/ ; a |