选出正确的拼写，将序号填在括号中。
（1）conc______ t
A. er B. re
（2）doll____
A. er B.ar
（3）b__ te
A. i B. a
（4）prepara______
A. tion B. sion
（5）rep_____
A. ire B. air
Please come and help me ___ my English .
A. on B. in C. with
Do you like ___ a hamburger? ----Yes, I do .
A. eat B. eating C. to eating
Can Su Hai ______ the cake ?
A. making B. make C. is making
My little sister is ____ and ___ in the park .
A. singing ; walk B. singing ;walking C. sing ;walking
I’m playing football ____ school .
A. on B. after C. behind