I’ll come to pay a visit to you if _______ this weekend.

_______ is important for us to learn English well.

For quite a few students, their teacher’s advice is more important than _______ of their parents’.

(2013·福建毕业班质检)—Shall I attend my friend's coming­of­age ceremony, Mum?
—No, unless you see to ________ that you will be home before 10：00 P．M.

What seems to be a simple idea always turns out _____ that is hard to put into practice．

I’m going to buy my daughter another interesting novel, _______ she would like to read．

It suddenly occurred to me        I hadn’t locked my door．

As Mrs Roosevelt put       ，I'd rather light a candle than complain about the darkness．

I hope there are enough books for each student to have ___________. 

—Doris, do you have anything in mind　　　you’d like for breakfast?
—　　　is okay with me. I’m not particular about food.