John is the only one of the students in the class who never _____ a mistake even when it is pointed out to him.
| A．admits making | B．admitted to make |
| C．admitted making | D．admitted having made |
---Dad, can you tell me why so many students choose to study abroad at a very young age?
---________, darling. I haven never thought about it.
| A．Take your time | B．You’ve got me there | C．Don’t be silly | D．Bad luck |
It was ___ the quality of life in the future ___ I took this training course, not just to make more money.
| A．to improve; that | B．improving ; when | C．to improve; when | D．improving ; that |
With a lot of difficult problems _, the manager felt like a cat on hot bricks.
| A．settled | B．settling | C．being settled | D．to settle |
Mr Black has two sons, one of ________working as a doctor.
| A．them | B．who | C．whom | D．whose |
—Who is the man ______ by a group of students there?
—A professor _____ research on physics.
| A．followed; did | B．following; did |
| C．followed; doing | D．following; doing |