Here’s useful book . book is written by Bill Gates.

 Here’s          useful book .         book is written by Bill Gates.

#32170

a; The

a; A

an; The

an; A

推荐题目

Let's look at the bag. Can you see _____“s” on the corner of_____ bag?

#33777

a, a

a, the

an, a

an, the

I sent ______ e-mail to Amy to say thanks for her help with my study.

#32467

the

This is _____ book. And it is ____ English book.

#33129

a, a

an, an

a, an

an, a

  —Did you believe his story?—No, not at all. From ______very beginning, I knew it was ______ hoax.

#32880

a; a

a; an

the; a

a; the

There is ______ "f" and ______"u" in the word "four".

#33896

an, a

a, an

an, an

a ,a

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