I spent most of my money in the first week and（）had very little for food at the end of the holiday.

单项选择题He is trying to find a new way to（）a living. Which of the following is incorrect.

A.get
B.earn
C.take
D.make

单项选择题Several languages are likely to die（）

A.out
B.down
C.off
D.of

单项选择题Heat causes the（）of gas.

A.growth
B.increase
C.expansion
D.extension

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