His father is engineer. He designed such useful machine A．a anB．an aC．an anD．a a——青夏教育精英家教网——

His father is engineer. He designed such useful machine

I saw ___ eighty-year-old man with ____ umbrella in such a sunny day just now.

Do you like playing _____ football or playing _____ violin?
A.the,the B.the,/ C./,the

This is a key. It’s ___________blue key.

Red and white are good match, as powerful red balances calm white.

D．a, the, the

This is English book and that is _______Chinese book.
A. a; a B. an; a C. a; an

This is ____ orange book and that is ____ apple.

–Who is ___ boy in a red cap? --He is Tom. He is good at playing ____ basketball.

I seldom take _______bus to school. I always go to school by _______bike.

D．不填：the

Max is _______honest boy. He has _______ useful book.

A．an; an	B．a; a
C．a; an	D．an; a

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