题目内容

I don't ______ when I heard from him.

A. [A] remember
B. [B] learn by heart
C. [C] keep in mind

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Sam was very ill, so his mother sent ______ the doctor.

A. [A] for
B. [B] away
C. [C] out

Do you remember how many brothers ______

A. [A] does he have
B. [B] he has
C. [C] has he

______ some of this juice perhaps you'll like it.

A. [A] Try
B. [B] Trying
C. [C] To try

Since I began to work here three years ago, this factory ______ in size.

A. [A] had doubled
B. [B] has doubled
C. [C] doubled

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