All the employees at the company are _______ their business as usual.

Christina, you had a wonderful time at your birthday party, didn’t you—______, and ______.

Mum, it’s late. Why are you still here–Dad hasn’t come back yet. I forhim.

There ______ a large number of students in our school. The number of the students _______ over three thousand.

______ do you go shopping—- Twice a week.