It’s hard for him playing against me. I’ve got nothing to play for, but for him, he needs to win so __________. 

He has called several times this morning. _______, there is something very urgent.

Intelligence does not_______ mean success. You need diligence as well.

.—Jenny, I've finished my summer school classes.—Well, Chinese is _______ difficult to learn, isn't it?—It seemed that _______ at first. But after a while it starts to get easier. I got an A in the exam.

The incomes of skilled workers went up. ______， unskilled workers saw their earnings fall.