You should be __________ when you cross the street.
___How time flies!It's already twelve o'clock.___ Oh,really? I ______ it at all.
-- _______ the soldiers are very tried, __ they keep on working.--They are great. We must learn from them.
too much candy is bad your teeth .A. Eat ; to B. Eating ; to C. Eating ; for
There ____more cars now in our country.
– You seem to know much about the city.– That’s true. I _______ it four times in the last three years.