He ______ be in the classroom because he was seen playing football on the play- ground. A: mustn't B: can't C: may not D: isn't able to

I’d rather ______ the piano than ______ the violin. A: play; playing B: to play; playing C: play; play D: to play; play

【单选题】You’d better on work time, or the boss may be angry with you. not play not to play to not play A. not play B. not to play C. to not play

‎下面（）是函数重载。‏ A: void play(int) 和void play(float) B: play( ) 和 ~play() C: void play(int) 和int play(int) D: void play( ) 和int play( )

下面（　　）是函数重载。 A: void play(int) 和void play(float) B: play( ) 和 ~play() C: void play(int) 和int play(int) D: void play( ) 和int play( )

She needs other children ______.() A: to play B: whom to play C: to play with D: whom to play with

I have no idea _________ football in America. A: how to play B: to play C: how play D: play

Let’s _____ and ______football on the playground. A: to go; to play B: go; play C: to go; play D: go; play the

Who do you often ( )? Mary. A: play B: play with C: play to

Tell the children ____on the street. A: to not play B: not to play C: play D: to playing