—Sorry, I’m late .

—I        for you for 2 hours .

A．had waited      B．am waiting      C．have been waiting   D．waited

She doesn’t’ mind being left alone        there are enough books to read .

A．though     B．so long as        C．in case     D．even if

Students at that school have classes        day , Monday , Wednesday , Friday .

A．every other      B．other        C．any other        D．each

All        remains for me to do is wait .

A．不填 B．what        C．that D．which

—Where is your brother ?

—He        to the library .

A．had gone B．had been C．must have been       D．must have gone

So badly        in the car accident that he had to stay in hospital for several months .

A．did he injure    B．injured him      C．was he injured        D．he was injured

He is the only person who saw the accident        . So he is the most important witness .

A．happen     B．to happen        C．having happened     D．happened

Wait here until I        you .

A．will call    B．am calling        C．am going to call      D．call

—It was very cold yesterday .

—       .

A．So was it        B．So it was C．It so was        D．Was it so

He was a German , nearly 60 years old , his hair        .

A．was completely white                                 B．be completely white

C．to be completely white    D．completely white