23. Tom had to be told two or three times ________ he could remember what the teacher said.
I think you must be mistaken about seeing him at the theatre; I’m sure he abroad all week.
—Have you nearly finished? —, we have just begun.
.Hawking became world-famous in _______.
Jane’s pale face suggested that she ill, and her parents suggested that she medical examination.
—Waiter! — —I can’t eat this. It’s too salty.