Don’t keep your mouth ___ if you want to improve your spoken English.
Nowadays college graduates have to be highly______ to find an ideal job.
He woke up and found himself ______ on the sofa, with a blanket over him.
The last time I _______ Jack, he _______ football with classmates.
.—Did you have trouble with your car this morning? — Yes, but I finally managed _______.
—Growing population resulted in growing rubbish. —There is ______that rubbish will become the major threat to human beings in future.