—Hello, I’d like to see Doctor Smith at 3 o’clock tomorrow afternoon. —Sorry, but he ________ a patient at that time.
--- I have got a headache. ---No wonder you _________ in front of that computer too long.
Water can absorb and give off a lot of heat without big changes in temperature, thus creating a ______ environment.
--- If you like, I can do some shopping for you. --- That’s a very kind ________.
Of all the books on the desk, ______ is of any use for study.
---John, there is _____ Mr.Wilson on the phone for you. ---I’m in _____bath.