76. All flights _______ called off because of the terrible weather, they had to go there by train.
| A．were | B．had been | C．being | D．having been |
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语音知识（共5小题，每小题1分，满分5分）
skim
| A．inspiration | B．organization | C．institute | D．possible |
expand
| A．race. | B．decade | C．mineral | D．bacteria |
worth
| A．thus | B．there | C．thunder | D． though |
hunger
| A．underline | B．circulate | C．argue | D．super |
comment
| A．reduce | B．focus | C．circulate | D．audience |
If we _________ the earth, we must take action before it is too late.
| A．will save | B．are to save | C．are about to save | D．are saving |
Cycling is a good way of exercise and is quite easy _________.
| A．to do | B．to be done | C．doing | D．being done |
---Did you make a phone call to your parents?
---Certainly. Hardly ____ the destination (目的地) when I phoned them.
| A．did I arrive at | B．have arrived at | C．had I reached | D．did I get to |
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