While we were running on the playground, Jack suddenly stopped ________and lay on the ground，so we all stopped ________what was wrong with him.
A．to run；to see
B．running；seeing
C．running；to see
Fishing with Dad was so _____ for the boy that he almost fell asleep.
| A．excited | B．exciting |
| C．bored | D．boring |
Tom ______ china for nearly five years. But now he Hawaii _________ business.
| A．has been to; has been in; on |
| B．has gone to; has been in ; for |
| C．has been in; has gone to; on |
| D．has been in; has gone to; for |
They ______ going to school on foot before they went to high school.
| A．used to | B．are used to |
| C．were | D．were used to |
--- Do you know Tom very well?
--- Yes, he and I _______ friends since we met in yangshan the year before.
| A．made | B．became |
| C．have made | D．have been |
Italy is famous for _____.
| A．the Eiffel Tower | B．the Pyramids |
| C．the Leaning Tower of Pisa | D．the Times River |