It's 9:45. It's time ____ music class. A. to B. for C. of
How old ________ your brother? A.is B.are C.does
Where ________ your father now? A.is B.are C.was
I can't ________ my key. A.look for B.find C.look
I was born ________ Beijing. A.at B.in C.on
When ________ your birthday? A.are B.was C.is