1,MOSt of my classmates like playing computer games .-______

1,MOSt of my classmates like playing computer games .-________i hardly play them.
A,in common B,by the way C,as for me D,of course
2,nobody can work out the problem.so it________be very different .
A,can B,can't C,must D,has to
3,seeing so many people on the street,Tracy stopped ________a look.
A,to have B,keep C,having D,has
4,did you have a problem ________your sister.
A,babysit B,babysitting C,to babysit D,babysits
最好有理由,