You can easily find a taxi here .The transportation in our city is very_______ . A. convenient B. cheap C. crowed
We should eat _______ fruit and vegetables, but _______ meat. It is good for our health.
—Must we keep the window _______ all the time?—No, you don’t have to.
Smoking can help you relax. But _______ it is also bad for your health.
Some medicine is dangerous for children. Parents should put the medicine in placeschildren can’t _______.
I can do many kinds of housework _______ cooking. I’ll learn it from my mother.