Lucy knew nothing about it ___________ her sister told her．
A．because B．until C．if D．after
He can play tennis better than ___________ in the class．
A．any boys B．any other boy
C．any boy D．any other
The old man lives ___________ , but he never feels ___________ ．
A．alone; lonely B．lonely; alone
C．lonely; lonely D．alone; alone
—Do you know mother giant pandas have only one or two babies ___________?
— Sorry, I don’t know．
A．at a time B．at time
C．at times D．at that time
— Is this maths problem ___________?
— Yes, I can work it out ___________ ．
A．easy ; easy B．easily ; easily
C．easily ; easy D．easy; easily
— ___________does your sister walk her dog?
— Once a day．
A．How many B．How fast
C．How soon D．How often
