Weonthisprojectforfourhours．Le

We _____ on this project for four hours． Let’s have a rest．

A．are working	B．have been working
C．worked	D．had worked

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You trust an online shop just because it has a beautifully-designed website.

A．shouldn’t

B．mustn’t

C．couldn’t

D．needn’t

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—Jack said you got a unique watch for your birthday.
—Yes. Maybe it is not to the taste of , but I like it.

A．everyone

B．anyone

C．none

D．nobody

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Hearing the news, he rushed out, ______ the book ______ on the table and disappeared into the distance.

A．left; lain open	B．leaving; lying open
C．leaving; lie opened	D．left; lay opened

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Burglar alarms ________ at any time of the day or night serve only to annoy.

A．go off	B．that go off
C．that are going of	D．which going off

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— Why do you look so worried?
—My computer broke down and my essay ______ unfinished since.

A．had left	B．has been left
C．has left	D．was left

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