问题描述：
1`I received a letter from my brother with an usual stamp on which( )my collection of stamps.
A added up to
B added to
C added in
D added together
2 On cold winter morning,we always find it hard to get our cars ( )
A started
B starting
C to start
D A or C
3 In big cities,cleaning women get paid by the hour.这一句里的“paid”能不能改成“to be paid"
A added up to
B added to
C added in
D added together
2 On cold winter morning,we always find it hard to get our cars ( )
A started
B starting
C to start
D A or C
3 In big cities,cleaning women get paid by the hour.这一句里的“paid”能不能改成“to be paid"
问题解答：
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