A cat is running after a mouse. The cat is _________ the mouse.
A.in front of
B.behind
C.in
( ) I’m very sad to ____ goodbye to you .
A. say B. says C. saying
( )Keep ____ practicing Chinese in the UK.
A. in B. on C. for
( ) I am happy ____ them.
A. for B. of C. to
（）I’m going _____ Lake Middle School.
A. to B. be C. in
选择不同类的单词。
（）（1） A.Maths B. Chinese C. English D. happy
（）（2） A.summer B. winter C. spring D. start
（）（3） A.French B. Chemistry C. middle D. Science
（）（4） A.home B. school C. history D. park
（）（5） A.September B. June C. Monday D. July