We are going to stay there for ______ hour.
( )He ______ on a farm. A. work B. to work C. works
( )_______she work in a company? A. Does B. Is C. Are
( )The girl begins _________again. A. to study B. study C. studies
( )How many ______are there in your city? A. library B. libraries C. a library
( )—_____does your grandpa work? —She works in a cinema. A. How B. Why C. Where