Peter has a lot of .
I usually get up___ six ___the morning.A. on; at B. at,on C. at,in
-What are you doing? I am ____an e-mail from Lucy.A. read B.reading C. reads
We should take good care _____young children.A. of B.at C. off
I don't like the colour. Can you show me___ trousers?A. those B. them C. this
There are many____in our school.A. tree B. trees C. a tree