There were many people ________in the factory when I passed.
A.work B.works C.to work D.working
The Sahara is about 29 ________the Taklamakan,the largest desert in China.
A.times as large as B.times as larger as
C.time as larger as D.times larger
You may feel difficult to ________ enough air in Tibet.
A. take away B. take on C. take in D. take off
—________ is the population of your town?
—About sixty thousand.
A.How B.What C.How many D.How much
In the near future, there ____ self-driving cars in our city.
A.is B.was C.are D.will be
—Mr.Wang isn't at work today.
—________ I know，he has gone to London.
A.As old as B.As far as
C.As soon as D.As long as
