I was just pulling the bed clothes over my bed to go back to sleep,( )there was another long bang.
A. as
B. when
C. while
D. whenever
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The needle and thread( ) precious for my grandmother who is good at sewing.
A. is
B. are
C. isn’t
D. aren’t
A dream of the Red Chamber is said( ) into dozens of languages in the last decade.
A. to have been translated
B. to be translated
C. to translate
D. to have translated
Had she listened to the lecture carefully last night, she wouldn’t ( )in the examination.
A. Failed
B. have failed
C. have been failing
D. have been failed
The most common control device is the electric switch, the object( ) is to turn an electric current on or off by completing or breaking its circuit.
A. for whom
B. of which
C. to that
D. with which