(2013·全国Ⅱ,14)It's an eitheror situation—we can buy a new car this year or we can go on holiday but we can't do ______.
Eating too much fat can ________ heart disease and cause high blood pressure.
Reducing the gap between the rich and the poor is one of the main ___________meeting the government.
How I wish we studied ________there are fewer exams .
On July 20, 1969, Neil Armstrong become the first man _________foot on the moon .
The timetable says the school bus _________ here for the first trip at 6:30 am.