once,week,some,a,exercise,students,twice,or,连词成句
once,week,some,a,exercise,students,twice,or,连词成句
Some students exercise once or twice a
连词成句:do,don't,homework,twice,a,once,week,or,students (.)
some sudents exercise once or twice a week
The students exercise (once or twice) a week .(对画线提问)
The stadents exercise once or twice a week对once or twice提问
Few students _____ homework once or twice a week
No students do homework once or twice a week.
once or twice a week 中文意思
once or twice a week的问题.
once or twice a week 造句
no students do homework once or twice a week中student为什么加s