May I speak to Robert—- _________ .

Tom’s father____ to London last month. He ______ there three times.

Mrs. Jones, who let out a cry of pain from time to time, had to ________ an operation on her right ankle to relieve the pain.

can’t wait _______ the result of the exam.

A hard-working man__ _______become a great scientist, but a great scientist__________be a hard-working man.