To the parents’ worry, some middle school students are ______ computer games and completely forget their studies.
–Michael was late for Mr. Smith’s oral class this morning.--_____? As far as I know, he never came late to class.
–You’re not worried about your English, are you? --No, certainly not. Not Chinese, not math and _____ English.
If it were not for the fact that she _____ sing, I would invite her to the party.
You see the lightning _____ it happens, but you hear the thunder later.
She had no idea how it _____ that her husband met with trouble again.