Every day I can play computer games ____________ one hour.A.on B.for C.at
—What do you think of the 3D-printed ______? —I’m afraid they are not safe enough to live in.
—Linda, how can I keep fit? —Well, ______ apple a day keeps ______ doctor away.
--- We failed in the singing competition. --- ______ . Better times are waiting for you.
--- Do you believe what he said ? --- No , never. It ________ be true.
--- Do you want to eat here? --- No. Just fish and chips to , please.