These problems,______ will seriously affect the growth of teenagers and even the nation's future.
More and more people have got to know the importance of the English study. ______, about six people in ten in this city are able to speak a little English.
I can’t finish this job by Friday. You expect too much of me.
Have you really realized the part computers have_______ in the daily life?
If you are not happy with it, you should say it out. Don’t just ______ in silence.
I am really worried about his grades in the coming test because of the little use he ______ of his spare time before it.