Being determined is a kind of quality andthat’s ________ it takes to do anything properly

Living or studying abroad, you are supposed to 　　　　yourself to new manners and customs.

I have to be at the office by noon tomorrow. My co-workers are taking me out for a final good-bye lunch. — ________ Where are you going to eat? —I don’t know. They want to treat me.

__________ the students who have taken part in the sports game is unknown.

The size of the audience, ____ we had expected, was well over one thousand.