John and I _____ friends for eight years. We first got to know each other at a Christmas party. But we _____ each other a couple of times before that.
| A．had been； have met | B．have been； have met |
| C．had been； had met | D．have been； had met |
Li Ming is said ______ the experiment in the lab, but I can’t find him there.
| A．to have done | B．to do | C．to be doing | D．doing |
They live in a beautiful village, with many trees and flowers _______ it.
| A．surrounded | B．surrounds | C．surrounding | D．to surround |
– Is John coming by train?
– He should, but he _______ not. He likes driving his car.
| A．must | B．can | C．need | D．may |
– I rang you at about ten o’clock, but there was no reply.
– Oh, that was probably ________ I was seeing the doctor.
| A．when | B．why | C．what | D．that |
It will be more than 100 years ____ the country begins once again to look as it did before.
| A．when | B．since | C．before | D．that |