1. he man is driving ______ his office.
A. on B. along C. towards D. pass
2. Go ______ down the road ______you see the tall building.
A. straight; until B. /; or C. along; and D. to; until
3. I’m sure grandpa will be very happy ______ us.
A. see B. seeing C. to see D. to seeing
4. Mr. Huston is looking forward ______ Beijing.
A. visiting B. to visiting C. to visit D. visit
