____ is known to everybody, the moon travels round the earth.
A．As B．It C．When D．Where
There are many toys, you can take _______you like.
A．whatever B．whichever C．however D．whenever
_____ is known to everybody that the moon travels round the earth.
A．It B．As C．When D．Where
Was it during the summer vacation ______ he went to Shanghai?
A．that B．when C．where D．which
We prefer__________alone rather than__________.
A．staying; go out B．staying; going out
C．to stay; to go out D．to stay; go out
This is my dear teacher without_________help I couldn’t have passed that difficult exam.
A．who B．whom C．whose D．That
