______ trees are cut down in the forests every year.
A.Thousand B.Thousands
C.Thousands of D.Thousand of
The population of the world in 20 century became very much _____than that in 19 century.
A.bigger B.lager
C.greater D.more
If I’m free,I’d like to spend ______holiday in Dunhuang.
A.three days B.a three-day C.three-day D.three day
----_______ do you have out with your friends?
----Once a week.
A.How long B.How often C.How many D.How soon
The accident took place ______ a cold February evening.
A.on B.in C. At D.for
Don’t eat ________meat.If you do so, you’ll get ______ fat.
A.much too, too much B.too much, much too
C.much too,many too D.too many, much too
