题目内容

You can have _________ second try if you fail _______ first time.

A. the; the
B. a; a
C. a; the
D. the; a

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—— Do you know ________ inventor?——Yes, he's _______ friend of mine.

A. a; a
B. the; a
C. /; /
D. the; /

Greens are watching TV now.

A. /
B. The
C. A
D. An

The more you practice,better you draw.

A. a
B. and
C. /
D. the

________ knowledge begins with _________ practice.

A; the
B. The; a
C. The; the
D. /; /

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