Mr Yang __________ many oranges __________ the orange trees yesterday. (    )

A．get; of

B．get; from

C．got; from

I _________ finish my homework first. (    )

A．have to

B．needs to

C．mustn’t

Joe, cut the carrots __________ pieces, please. (    )

A．to

B．down

C．into

We __________ water to __________ clothes. (    )

A．use; wash

B．using; washing

C．use; washed

用所给词的正确形式填空。
【小题1】He _________ (have to) stay at home because it is raining outside.
【小题2】Kitty, please don’t _________ (play) with fire!
【小题3】The paper is _________ (make) from wood.
【小题4】The tree in front of my house _________ (keep) the air clean.