Jack didn’t pass the examination lastweek.—_______ He had been working so hard athis lessons.

.－Jim!Did you have a good time at the party－Yes，but with all this work on hand，I really________there．

What’s her family name — ___________.

Which sentence is incorrect

The use ofChinese by teachers in ______ English classroom must be restricted because itwill decrease _______ time when students are exposed to the English language