Mr. Zhang gave the textbook to all the pupils except__________who had already taken them.
A. the ones
B. ones
C. some
D. the others
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