― I'm afraid I have to give it up.― Don't be discouraged. Remember ______ sticks to his work will succeed one day.
.The higher the oil price is, ___________to the global economy.
.I made a call to my parents yesterday. To my disappointment, _________of them answered it.
.—Can he take charge of the computer company? —I’m afraid it is _________ his ability.
—Since you can't find a better way out for the time being,why not follow his advice?—Oh, .
It’s a pity that you leave so soon. It’s been so nice having you here.