—What have you learned from your experience in Thailand?
—Well, meeting people from another culture ______ be very difficult．
| A．must | B．can | C．should | D．shall |
Do you think it is worth ____ your life for adventure?
| A．to risk | B．risked | C．risking | D．risk |
We’ll live with the local people in their villages, and eat and drink whatever they ____, including cow’s blood.
| A．will | B．do | C．can | D．are |
I still remember that terrible accident a few days ago, ____ more than 20 pupils were killed.
| A．where | B．that | C．on which | D．which |
The police said they would not give up looking into other possibilities ____they find out what happened.
| A．as | B．while | C．until | D．although |
When Justin didn’t ____ for lunch the next day, Mrs Foster became worried and called the police.
| A．give up | B．show up | C．make up | D．stay up |