The course about Chinese food attracts over 100 students per year, _______ up to half are from overseas.
| A．in which | B．of whom | C．with which | D．for whom |
Bob would have helped us yesterday, but he-_______
| A．was busy | B．is busy | C．had been busy. | D．will be busy |
George is going to talk about the geography of his country, but I’d rather he_______ more on its culture.
| A．focus | B．focused | C．would focus | D．had focused |
Fever is a ________of many illnesses. So I suggest you take it seriously and see a doctor as soon as possible.
| A．message | B．symptom |
| C．label | D．clue |
Had I known about this computer program, a huge amount of time and energy .
| A．would have been saved | B．had been saved |
| C．will be saved | D．was saved |
I won the first prize and you can imagine how excited I was when the Mayor ________ me with the reward.
| A．provided | B．supplied |
| C．presented | D．charged |