My friend ______ from the UK. She studied at Oxford for four years, during which we communicated with each other on the Internet.

Mary wants to know .

Whose purse is it? —If it isn’t yours, it must be _________.

I just can’t stop worrying about the result of the job interview.–_______ . There’s nothing you can do now but wait.

Look at the boy running on the ground. Is it David?—It be him. I saw him go to the teacher’s office just now.