—How can we protect ourselves _____ the earthquake?—First, we should keep calm when it happens.
Smoking can help you relax. But _______ it is also bad for your health.
I have some problems with my health. Can you give me some _______?
Some medicine is dangerous for children. Parents should put the medicine in places children can’t _______.
I can do many kinds of housework _______ cooking. I’ll learn it from my mother.
I think _______ necessary for you _______ breakfast.