They’ve got two machines, but ________ works well.
Be sure to let Tom know the notice as soon as he______.
—It’s nice to see you again. Have you changed jobs?—No, ________ my cousin here.
—Is that your best friend Simon?—No, it _______ be him. He flew to Hong Kong yesterday.
—Have you found the information about Columbus?—Not yet, but I’ve found a website ________ gives an introduction to Columbus. It’s be very ________.
— Are you going to borrow a dictionary or a magazine?— ______.