The girl arranged to have piano lessons at the training center with her sister ______ she would stay for an hour.
| A．where | B．which | C．who | D．what |
He looked around and caught a man _______ his hand into the pocket of a passenger.
| A．put | B．to be putting | C．to put | D．putting |
The shop doesn’t open until 11 am, _______ it loses a lot of business.
| A．for | B．or | C．but | D．so |
— Beijing or Shanghai? What did you mean?
— We were talking about _______ go to college.
| A．how to | B．where to | C．whether to | D．when to |
When he was a boy, he used to go there and watched _______.
| A．repairing bicycles | ||
| B．to repair bicycles | C．bicycles being repaired | D．bicycles to be repaired |
Robert is said______ abroad, but I do not know what country he studied in.
| A．to have studied | B．to study | C．to be studying | D．to have been studying |