Walmart, which is one of American supermarkets, ________some of its stores open 24 hours on Monday till Saturday.
A.keep B.keeps C.keeping D.to keep
I would rather________ at home than ________ to the cinema.
A.stay; going B.to stay; go
C.stay; go D.to stay; to go
— How time flies! Three years ________ since we become junior high students.
— Time and tide wait for no man.
A.has gone by B.have gone away
C.are going by D.went away
We must ________ in a difficult situation, so we can think deeply to solve the problem.
A.keep waiting B.keep at our study
C.keep our cool D.keep up with
Our geography teacher told us that________.
A.the earth moves around the sun B.the sun moves around the earth
C.the earth moved around the sun D.the sun moved around the earth
It has been 12 years ________ China hosted the 2008 Beijing Olympic Games.
A.after B.before C.in D.since
