----How many students are there in your class?---- __________ number of the students in our class __________ 40.
Even Tony’s six-year-old son asked him ______ smoking.
The schoolboy ______ a blind man cross the street yesterday.
— Can he jump high?— Yes, he ______. He is a good high jumper.
It was dark, ______ I couldn’t see what was happening.
I often go on holiday with my parents _____ summer.