—Must we keep the window _______ all the time?
—No, you don’t have to.
A. opening B. opened
C. to open D. Open
Smoking can help you relax. But _______ it is also bad for your health.
A. or B. so
C. on the other hand D. Then
Some medicine is dangerous for children. Parents should put the medicine in places
children can’t _______.
A. like B. see C. take D. Get
I can do many kinds of housework _______ cooking. I’ll learn it from my mother.
A. for B. without
C. except D. Between
—Where did you go yesterday?
—We went to the swimming team. We have fun _______ there.
A. swim B. swimming
C. to swim D. Swam
—He plays basketball so well! Who taught _______?
—He learnt it by _______.
A. him; him B. himself; himself
C. him; himself D. himself; him
