You’ll certainly feel lonely ______ you communicate with your friends sometimes.
A. unless B. though C. if D. when
--- Where’s Jenny?
--- I’m not sure. She ______ in the school library.
A. maybe B. must be C. may be D. will be
______ stones were put together in a certain way.
A. Tons B. A hundred of
C. Hundreds of D. Hundreds
I am sure Cindy will be able to find the hotel. She has a pretty good ______ of direction.
A. idea B. popularity C. taste D. sense
The ______ of new technology is to make life easier, not to make it more difficult.
A. trouble B. honor
C. purpose D. position
These books must belong to ______”means “These books must be ______.”
A. their, them B. their, theirs
C. them, their D. them, theirs