( )I want to buy ________ shoes. A. a B. a pair of C. a pairs 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