__________twice a year, whether it is a car or bus or a truck, is the rule that every driver must obey in this city.
| A．Examining | B．Examined | C．Being examined | D．Having been examined |
相关试题
_____ of the land in that district _______ covered with trees and grass.
| A．Two fifth; is | B．Two fifth; are | C．Two fifths; is | D．Two fifths; are |
--I’d like to invite you to dinner this Saturday.
--_______.
| A．Oh, no, let’s not | B．I’d rather stay at home |
| C．I’m very sorry, but I have other plan | D．Oh, no. That’ll be too much trouble. |
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 |
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