一、单项选择。（15分）
( )1. --Which season do you like best?
--______, because the trees turn green and flowers are open.
A.spring B.autumn C.summer D.winter
( )2. --What's the weather like today? --______.
A.Rain B.February 20 C.Sunday D.Rainy
( )3. My aunt arrived ______ Guangzhou ______ the morning of March 13.
A.at, for B.in, in C.in, on D.to, on
( )4. There _____ a pair of scissors and two pairs of shoes on the floor.
A.is B.are C.has D.have
