單項(xiàng)選擇題Mathematics（）study or science of numbers.

A.is 
B.are 
C.was 
D.were


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1.單項(xiàng)選擇題Mary told me that she（）to the supermarket before coming home

A.went  
B.had gone
C.has gone 
D.goes

2.單項(xiàng)選擇題Many people watched the boys（）the mountain at that time.

A.climb 
B.climbing
C.to climb
D.climbed

3.單項(xiàng)選擇題Many countries are increasing their use of natural gas, wind and other forms of （）

A.energy
B.source
C.power 
D.material

4.單項(xiàng)選擇題Madam, do all the buses go downtown?（）

A.Wow, you got the idea.
B.No, never mind.
C.Pretty well, I guess.
D.Sorry, I'm new here

5.單項(xiàng)選擇題Look! Here（）the famous player

A.comes
B.come 
C.had come  
D.coming