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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单项选择题

Students at colleges in large cities ran into （） debts because it was easier for them to find part-time jobs than those in rural areas.

A．little
B．less
C．few
D．fewer

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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