The TV play series The Revolution of 1911, broadcast on CCTV1 lately, is ________ the 100th anniversary of The Revolution of 1911.
I have ______ my husband again and again not to smoke , but I can’t ______ him.
He asked Mary whether she had passed the exam ________.
More than _______ of the classmates in my class ____ fond of pop music.
She will tell us that each of us has a role ______ in making the earth a better place to live.
—How do you think he managed to improve his English in such a short time? —______ four hours on it every day.