赞题库-背景图
单项选择题

______, he went out to play football with his friends.

A．To have finished his homework
B．Have finished his homework
C．Having finished his home work
D．Finished his homework
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热门试题

单项选择题The exploration team met the ______ greatest difficulties.

A．imaginary
B．imaginable
C．imaginative
D．imagined

单项选择题Mr. Johnson preferred ______ heavier work to do.

A．to be given
B．to give
C．to have given
D．having given