be rich in 意思
fruit and vegetables are rich in vitamins中be rich in 是什麼意思
.
还有,fruit是可数还是不可数的啊,有时候可以加s的吗?
All the students as they heard the good news.
A shout B laugh C excited D cheered 为什么选D 不选c
what would your life if you could not see or hear?
A like B be like C be liked D look like