—Tom is a quick learner, but he is ______ at times.—That’s true. He is sometimes not calm enough.
Students should learn how ________ problem.
—Why is Linlin practicing speaking English? —________ abroad for further study.
—Why are you so excited today? —We were told ________ a picnic this weekend.
How kind you are!You always do what you can ________ others.
He sat in the armchair, ________ a newspaper.