Last night Li Ping watched the football match at home when he ________ his homework.
--- What do you think of the grammar book? --- Oh, it really is ________ useful reference book, which is worth reading ________ second time.
--Mary, remember to come and see us next time you’re in town. ---__________.
——Shall I give you a ride as you live so far away? ——Thank you. ______.
Their youngest child is at the stage ___________she can say a few words but not full sentences.
It was Paul’s low test scores that_________ his chances of getting into a good school.