6.The get-together after tem years of separation should be a(n)__________of excitement, but the old friends could not feel real joy.
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.
She will have to find some other work for she can’t ________ this loud noise any more.
—Happy birthday to you! — ______.