---What have you learned from your experience in the USA?
---Well, meeting people from another culture ______ be very difficult.
| A．must | B．can |
| C．should | D．shall |
You can’t find such a good place ______ we visited the other day.
| A．that | B．which | C．where | D．as |
Without ____ participation of so many people, the completion of such a project in a short period would be out of ______ question.
| A．a; / | B．the; / | C．a; the | D．the; the |
He apologized for _____.
| A．his not being able to come | B．his being not able to come |
| C．his being able not to come | D．him not being able to come |
It’s the ability to do the job _______ matters not where you come from or what you are.
| A．one | B．that | C．what | D．it |
--Is Bob still performing ?
--I’m afraid not . He is said the stage already as he has become an official.
| A．to have left | B．to leave | C．to have been left | D．to be left |