Some students have trouble _______grammar while others have difficulty      —___ new words.

Bill’s fully ____ from his heart disease. He is very happy.

Tom ____ skating, so he spends all his spare time on it.

Having retired(退休), he ______ the club for old men and plays chess every day there.

At the meeting, the old man ______ some good advice about bringing down the market price of housing.

You have no idea what I’ve had to ______ during the last few months.

How much does that      ?

His first baby was born soon after he got married, which seemed to have ___his sense of responsibility.

—Sleep well last night?
—Far from that! My next-door neighbor       music pretty loud.

She         to beat the world record but failed at last.