摘要：21．There is “u and “s in the word “bus ． A．an,an B．a,an C．an,a D．a,a

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There is ______ “u” and ______ “s” in the word “Sue”.

A. a; a B. an; an C. a; an D. an; a

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

There is ______ “u” and ______ “s” in the word “bus”.

There is______ “u” and ______ “s” in the word “use”.

There is ______ “u” and ______ “s” in the word “bus”.