― Where is Mr Brown, do you know?― Oh, sorry. He is out. He ___________ back in an hour.
-________ have you been like this? -Three days. A. How long B. How far C. How many
You’d better not read ________ the sun. It’s bad for your eyes. A. on B. in C. at
Pop music often comes and goes ________. A. slowly B. quickly C. loudly
―Would you mind ______ me how to swim? ―Not at all. A. teach B. to teach C. teaching
I’m going to play_______ football this afternoon. A. a B. / C. the