2010届高考英语单项选择专项训练
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21. Unfortunately, when I dropped in, Doctor Li _____ for Beijing to join in the fight again SARS, so we only had time for a few words.
A. just left B. has just left
C. is just leaving D. was just leaving
22．He hasn't come yet．What do you consider _______ to him？
A．happens B．has happened
C．happening D．to happen
23. ______ is known to us all is that China has launched Shenzhou V spaceship successfully.
A. That B. What C. It D. As
24. —You've made great progress in your studies of English, haven't you?
—Yes, but much .
A. remains to do B. is remained to do
C. remains to be done D. is remained to be done
