A.growthB.increaseC.expansionD.extensionHeat causes the……

单项选择题He is（） at doing this kind of job.

A.imefficient
B.nonefficient
C.unefficient
D.inefficient

单项选择题Cycling is a good exercise.（）, it doesn't pollute the air.

A.Therefore
B.Moreover
C.But
D.However

单项选择题Speed limits should lead（） fewer deaths on the roads.

A.to
B.off
C.on
D.in

单项选择题The hospital is carrying（）tests to find out what’s wrong with her.

A.over
B.out
C.off
D.away

单项选择题Hello, I’m Harry Potter. Hello, my name is Charles Green, but（）.

A.call    my    Charles.
B.call   meat   Charles.
C.call   me    Charles.
D.call   Charles    me.