初三英语完形填空题There are many serous problems in the world today.T

初三英语完形填空题
There are many serous problems in the world today.The population problem is ____1___the greatest one.The world's popolation is growing ____2____.Two thousand years ago,there were only 250____3____people in the world.One thousand,six hundred years ago,there were only million.In 1990,there were over five billion,In 2000 ,the world's population passed 6 billion._____4____it has reached 6.6 billion.
____5____ the large population,there will be ____6____ living space for people.And it's very hard for so many people ____7_____ jobs.A large population will _____8____ cause many difficulties for the whole world.For example,we will ____9____energy and water .Most cities will be _____10____than before,and the traffic will be much heavier.So lots of countries are taking some measures to control the popution now.
( )1.A.probably B.must C.may be D.may
( )2.A.fastet B.more fast C.the faster and the faster D.faster and faster
( )3.A.thousand of B.thousands C.million D.million of
( )4.A.So far B.From now on C.At that time .At times
( )5.A.As B.Because C.Because of D.Since
( )6.A.less B.more C.little D.much
( )7.A.finds B.to find C.finding D.found
( )8.A.too B.neither C.also D.as well
( )9.A.be short of B.be more of C.lose D.lost
( )10.A.more crowded B.crowd C.crowded D.less crowded