单项选择题

______ of plastics, the machine works perfectly.

A．Being made
B．Having made
C．Made
D．To be made

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单项选择题

So violently ______ to be mad that for a moment or two the Princess was unable even to whisper in her ear.

A．did she pretend
B．she pretended
C．pretended she
D．had she pretended

单项选择题

—Why were you absent(缺席的) from the meeting yesterday —I ______ the meeting, but a traffic accident ______ me.

A．must have attended, delayed
B．might have attended, had delayed
C．should have attended, delayed
D．could have attended, bad delayed

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