写了英文句子，请当英文老师的朋友帮我看
他画几个地方不对，但没帮我写答案
还是有些地方没看懂
希望有人帮我解答，谢谢QQ
The glasses stores form into an eyewear industry,
and result in many employment opportunities.
朋友说这里用result in不对
是因为没主词吗?
They propagandize their product in wrong ways,
which cause some people ______ get more serious nearsighted problems.
cause是要加s吗?
可是这里的关代which是指前面的wrong ways 不是单数主词
people后面被画了一个空格 想不出是缺什么?