—Do you have ________ difficulty working out the problem?—Yes. It is ________ me.
After two hours of walking, they came to the camp site, ______ .
The reason______ he was late for class is______ he didn’t catch the first bus.
______ you’ve got a chance, you might as well make full use of it.
—I am sure Mary will win the first prize in the final.—I think so. She______ for it for months.
—Thank you for your wonderful meal. —______.