______ afraid of speaking in front of people, Tom. You are the best one in our class.
A.Don’t be B.Not be C.Not to be
—Hi, John! When did you come back?
—Last week. I ______ Beijing for a month.
A.have been in B.have been to C.was in
______ you can sleep well, you will lose the ability to focus and plan after one or two nights.
A.Once B.Unless C.If
I didn’t mean ______ anything but the ice cream looked so good that I couldn’t help ______ it.
A.to eat; to try B.eating; trying C.to eat; trying
I need a new passport so I will have to have my photo ______.
A.take B.taking C.taken
— When can we stop wearing masks?
— Not until COVID-19 ______.
A.will control B.is controlled C.will be controlled
