Could I have an interview with Mr Green now, please?— Sorry, he _________ a meeting. You’d better wait a minute.

Why haven’t you asked her to come here?— She _______ an important experiment when I found her and she _______ it.

I haven’t seen ____Maggie since I came here.

Though he’s only 8 years old, he can read _______ on science.

She’s feeling ______ tired.