The train__________she was travelling was late.

A. which
B. where
C. on which
D. in that

He has lost the key to the drawer__________the papers are kept.

A. where
B. in which
C. under which
D. which

Antarctic__________we know very little is covered with thick ice all the year round.

A. which
B. where
C. that
D. about which

It’s the third time__________late this month.

A. that you arrived
B. when you arrived
C. that you’ve arrived
D. when you’ve arrived

6.It is said ______ comic books create a connection between people of the same generation.

A. that
B. which
C. when
D. how

She finally made the decision _____ she would join the fashion show.

A. which
B. that
C. when
D. what

The news came ______ heir team had won the championship.

A. that
B. when
C. which
D. how

Perhaps the most important thing to remember is _____ there is no one common type of life in America.

A. which
B. when
C. how
D. that

The reason ____ so many people died there is that there were not enough food supplies.

A. why
B. when
C. how
D. that

Complete the sentences by putting in the blanks appropriate if idoms. (if only, only if, if not, what if)At the beginning a lot of people thought his dreams were quite difficult, _____ impossible, to realize. But eventually he made it.