— I'm afraid I can't finish the book this week. — ____.
.—Don’ t you agree with what he said at the meeting? —Yes, ________! It can’t be better.
.A proper approach to ________ your learning efficiency is of great significance to every student.
.—Why are you looking so worried? —I sent an email to my son in America last week, but no reply ________.
.When the environmentally friendly cars came onto the market, many people were eager to buy them ________ the price.
.—I believe Tom to be a great businessman like Bill Gates in the future. —Why do you think so? —Because he is ________ in business.