The ______ of new inventions should be to make life easier, not to make it harder.
A. rules B. subjects C. secrets D. purposes
Don’t ______ others too much. You should do things by yourself.
A. agree with B. depend on
C. think about D. look after
Unluckily, a car accident _____ on this road last week.
A. happened B. was happened
C. was happening D. has happened
It is a pity that his son was born _______ a weak heart.
A. with B. from C. at D. in
It is wrong of a student ______ his homework by himself. Copying makes one lazy.
A．to do B. don’t do
C. not to do D. not do
—The theatre is far away and there is no bus.
—Do you mean it is ______ to take a taxi?
A. interesting B. dangerous
C. difficult D. necessary
