—What happened? My mum’s room is empty. All her things are gone!
—Oh, very sorry, sir. We thought she ____________ the hotel this afternoon, so we took her bags downstairs.
A. has left B. will leave
C. is leaving D. was leaving
Walking exercise may be boring ____________, but early on a clear sunny morning there can be
nothing finer.
A. in time B. on time
C. at times D. some time
—May I go to the cinema with you this Sunday?
—I’m afraid not, ____________ you have a ticket.
A. if B. unless C. until D. since
He promised to deal with such problems, he did do exactly. His word is ____________ his action.
A. better than B. worse than
C. as well as D. as good as
—As we know it’s difficult to live in a foreign country.
—____________if you don’t understand the language there.
A. Exactly B. Naturally
C. Usually D. Especially
The energy from the sun and wind is very cheap and it will never ____________.
A. come out B. put out
C. carry out D. run out
