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
--The weather has been very hot and dry.
--Yes. If it had rained even a drop, things would be much better now! And my vegetables .
A．wouldn't die B．didn't die
C．hadn't died D．wouldn't have died
