The twins are so much alike that it is difficult to tell one from________.

Whose CDs are these?-They must belong __________ Jim. He likes music.[ ]

Anhui is famous _____ Mount Huang.Many visitors all over the world come to visit it. [ ]

Though I _____ the phone number many times, the foreigner still couldn’t write down.

It’s very dangerous __________ football in the street.