Could I use your mobile phone now?— Yes, of course you .

I called you at 5:00 yesterday afternoon, but no one answered.—Sorry. I _______ football with my friends at that time.

— He _____ without our help. — Yes, I know. We have to admit that nobody can match him. [ ]

______, Mandy. Everything will get better soon.

Nuclear ______ be really dangerous at times even though it’s a nice energy in general.