A:mightn`t
B:won’t
C:need’t
D:mustn`t
There __________ a big tree in front of my house . I could hear many birds sing in it .
读读做做。
今天星期天,我来做家务。先来擦桌子,再来拖地板。妈妈看着我,开心地笑了,爸爸说我长大了。