31.—Can you tell me what time the flight to Detroit leaves? —I'm sorry, but it ______.
__ it to clear up tomorrow, the tourists would climb to the top of the mountain to see the sun __.
.It is the third time that our water supply _______during the day.
With all the things he needed _______, he went home happily.
As a heavy smoker , he finds it hard to get rid of the habit, which has a bad _____on his health.
---Do you fancy going to the cinema with me now? ---Sorry .I have to prepare for tomorrow’s lesson.______, it is freezing cold outside.