Don’t touch anything __________ your teacher tells you to.
| A．if | B．though | C．unless | D．even though |
During his stay in Xi'an, Jerry tried almost all the local foods his friends,
| A． | would recommend | B． | had recommended |
| C． | have recommended | D． | were recommending |
I’d appreciate ________ if you could let me know in advance whether or not you will come.
| A．it | B．you | C．one | D．this |
the difficult maths problem, I have consulted Professor Russell several times.
| A． | Working out | B． | Worked out | C． | To work out | D． | Work out |
________ village where I was born has grown into ________ town.
| A．The; a | B．A; the | C．The; the | D．A; a |
Ralph W. Emerson would always ______ new ideas that occurred to him.
| A．set off | B．set about | C．set up | D．set down |