Look out! Don’t get too close to the house________ roof is under repair.
When Marx was in London, he _____ read at the library for hours.
Keep up good state of mind even if you _____ fail plenty of times.
— Are you coming to Jeff’s party?— I’m not sure. I _____ go to the concert instead.
— Mary’s got mad and has been sent to the mental hospital. Did you tell her boss about that?— Yes, but I _____ her husband first.
My English-Chinese dictionary has disappeared. Who _____ have taken it?