The people you find most diffcult can also be your most valuable teachers.
He has recently ______ golf to provide himself with some relaxation.
A _____ carries all kinds of things , but no passengers.
—What’s up? You look down. —I have piles of papers ______, but I type so slowly.
Hearing the news , he hurried home, leaving the book_____ on the desk.
—Another cup of coffee? That’s your third since lunch. —Yeah, well, I ______ all night preparing for my math exam. I can hardly keep my eyes open.