It is difficult ____the students _____ get to Yunnan.
A. for ， for B. to ， for
C. for ， to D. to ， to
Mike is one ________ boy.
A. 11--years --old B. 11--years old
C. 11--year-old D. 11 years old
School make rules __ help ______ students.
A. help B. helping C. to help D. helps
Elephants can remember the places _______ food and water.
A. with B. for C. in D. at
He likes ______my friends.
A. to play with B. to play
C. play with D. play
Where _____ lions from ?
A. does， From B. do， come from
C. is， from D. are ，come from
