There is ___________ “s” and __________ “u” in _______word “student”.

----May I have a look at the I-phone,sir
-----Which one?_________black one?

There is _____ “s” and _____ “u” in _____ word “bus”.

This  is      ruler .      ruler  is  yellow .

—What’s this?
—It’s        orange.
A、a                   B、an              C、the

----May I have a look at the I-phone,sir
-----Which one?_________black one?

Black broke his leg. He has just had_______ X-ray examination. _______ doctor said he needed _______ operation.

There is _____old football under ____bed . I like to play _____football.

There is _______ “u” and _______ “s” in the word “use”.

Simon doesn’t like playing ____________ football.