Understanding the cultural habits of another nation, especially __________ containing as many different subcultures as the united states, is very difficult.
| A．one | B．that | C．some | D．the one |
解析：one 代指一个国家，他是泛指
What do you mean，there are only ten tickets?
There ________ be twelve.
| A．should | B．would | C．will | D．shall |
—Good morning.I've got an appointment with Miss Smith in the Personnel Department.
—Ah，good morning.You ________ be Mrs.Peters.(2010·北京)
| A．might | B．must | C．would | D．can |
I can't leave.She told me that I ________ stay here until she comes back.
| A．can | B．must | C．will | D．may |
—________ I take the book out?
—I'm afraid not.
| A．Will | B．May | C．Must | D．Need |
You ________ park here！It's an emergency exit.
| A．wouldn't | B．needn't | C．couldn't | D．mustn't |