问题

customer withdraws money from the bank, it isrequired to leave his signature But how can we be sure it is_______

A:during
B:by
C:in
D:at

正确答案是：

同类题型

a superstar in environmentprotection, reduces plastic and other _______ through DIY

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______ eraser is this— It’s my sister’s.

________ it snowed heavily yesterday, nobody in ourclass missed the lesson.

Did you go to her birthday party heldthe day before yesterday— I ____, but something unexpectedhappened at my home.