Only when I got here _________ that I had made a big mistake.
| A．did I realize | B．I realized | C．I have realized | D．have I realized |
------Tom is never late for work. Why is he absent today?
------ Something _______ to him.
| A．must have happened | B．can have happened |
| C．must happen | D．can happen |
Roads in this mountain area used to be_______; people found it hard to travel here.
| A．in poor conditions | B．in the poor condition |
| C．in poor condition | D．in a poor condition |
--- someone says something negative about me?
------Just ignore it.
| A．As is | B．what if | C．Even if | D．Only if |
Every time ______ I go to school, I am usually riding my bike, _____ I take a bus.
| A．when; besides | B．/; except when | C．when; except for | D．/; except for |
_____ 20 girls Class 10 ______ another 30 boys.
| A．Apart from; have | B．Except for; have | C．Apart from; has | D．Except for; has |