Most of us enjoy __________to our mothers speak， because our brains greatly prefer the voices of our own mothers．（ ）
A．listeningB．listenC．to listen
﹣Can I help you，Sir？
﹣Yes，please．I am____ a blue T﹣shirt．（ ）
A．looking upB．looking for
C．looking afterD．look through
How____ it rained yesterday! We had to cancel our football match．（ ）
A．heavilyB．lightC．heavyD．lightly
We gave away____books to the school library last year．（ ）
A．six thousandsB．six thousand
C．six thousands ofD．six thousand of
Frank is a friend of____．He is a scientist from Canada．（ ）
A．myB．IC．meD．mine
Hide﹣and﹣seek is___interesting game for children．（ ）
A．aB．anC．theD．/