The people living in these apartments have free ______ to that swimming pool.
According to a recent survey, homework is ______ students most often blame for their lack of sleep.
All the books donated by the students from urban schools are said ________ to the students in the earthquake-stricken areas the other day.
I will be surprised if you can get Calvin, who is a close-fisted man, ________ these donation draw tickets from you.
The fog was so heavy this morning that drivers could hardly ________ the things just ten meters away from them.
This is the most serious and worst situation ___ I have ever experienced as a fan of the NBA. A. whichB. thatC. when D. where