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【单选题】
This machine is extremely ( ) because it runs on half-price electricity.

economic
economical
economy
economist
【单选题】
You can take as many as you like because these handouts are free of ____.

fare
charge
money
pay
【单选题】
Jane is in a hurry because the train to the airport leaves ______ half an hour.

by
in
for
until
【判断题】
“Purchase”and “buy”are not synonyms because “purchase”is more formal than “buy”.

正确
错误
【判断题】
We should buy any meat, because there are little left.

正确
错误
【单选题】
Sorry, I must be leaving now, because there’s a meeting.

Oh, no, you can’t
Yes, you can leave if you like
Do you really have to go? Couldn’t you at least stay for another cup of tea?
Oh, no. I don’t understand
【单选题】
We cant [填空] because we dont have wings.

fly
flies
flying
flied
【单选题】
18. The earth is about ____ as the moon.

as fifty time big
fifty times as big
as big fifty times
fifty as times big
【单选题】
Which of the following statement is not true about vocabulary?

a vocabulary item can be more than one word
Vocabulary can not be taught. It must be learned by the individuals
Words are best learned in context
An English-English dictionary is an important aid for students.
【单选题】
Which of the following is NOT true about The Canterbury Tales?

It is written in the form of a dream.
Chaucer chose a pilgrimage as the framework for the stories.
It is written for the greater part in heroic couplet.
“The General Prologue” introduces the pilgrims, the time and occasion of the pilgrimage.