单项选择题

He kept postponing （） his assignments.

A．hand in
B．to hand in
C．handing in
D．having handed

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单项选择题
I'd rather （） care of the stomaches of the living than the glory of the dead in the form of stone memorials.

A．take
B．took
C．taking
D．have taken
单项选择题
Hardly （） the room when I found a letter on the floor.

A．I had entered
B．had I entered
C．I entered
D．did I enter
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