单项选择题

There is a（）look on his face. What's on his mind

A．worry
B．worried
C．worrying
D．worring

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单项选择题
You have made a few spelling mistakes in your composition, but（）, it is fairly good.

A．as a whole
B．generally speaking
C．after all
D．on the whole
单项选择题
The boys and girls are walking along the street,（）a green coat.

A．each of them has
B．they each have
C．every wears
D．each wearing
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