"___________" means "If lots of people share the work， it will make a job easier to complete．"（ ）
A．Burn the candle at both ends．
B．Every dog has its day．
C．Many hands make light work．
D．A friend in need is a friend indeed．
Whose textbook is it？ Is it Jenny's？
No， it ________ be Jenny's． Look， Helen's name is on the cover． I think it ________ be Helen's．
（ ）
A．can't；mustB．mustn't；must
C．can't；mayD．mustn't；may
I'm always a little nervous when I answer questions in class．
________． Believe in yourself!（ ）
A．That's rightB．Take it easy
C．Take it seriouslyD．Have a point
The Tokyo Olympics will be ________ because of the disease around the world． （ ）
A．put upB．put offC．put onD．put away
What do you usually do in your spare time？
I often go to our community library． It ________ for two years in order to encourage us to read more．
（ ）
A．opensB．has opened
C．has been openedD．has been open
Although the man is in his eighties， he grows vegetables ________ in his garden． （ ）
A．in publicB．in personC．in silenceD．in fact