____the doctors really doubt is____my mother will recover from the serious disease soon.
—_______when has the country been open to international trade? — 1978,I suppose.
—Did you see a man in black pass by just now? —No, Sir. I_______ newspaper.
After the long journey, the three of them went back home,_______.
_______it is to jump out of an airplane at 10,000 feet!
Jenny hopes that Mr. Smith will suggest a good way to have her written English _______ in a short period.