It is not allowed ________ in the CRH train during the whole journey.A.smoke B. to smoke C. smoking
It’s bad for our eyes to read books _______ the sun.
The summer holiday is coming. We’re going to have _______ holiday.
I think _______ necessary for you _______ breakfast.
—There _______ a football match this evening. —Exciting news.
We should eat _______ fruit and vegetables, but _______ meat. It is good for our health.