They kept trying _____ they must have known it was hopeless.
..It was _______ he said that _______ me feeling frustrated.
.__________I am amazed at is__________she wants to find fault with others all the time.
.—Is it OK if I have another cup of coffee?—Of course, _______.
.A terrible accident _______,however, occur the other day and we caught sight of it _______ accident.
.—I think 20 dollars for it is OK.—No, I’d gladly pay _______ for it.