There are several reasons why it is important to learn basic skills.这句话对吗?有语法错误吗

There are several of there are=there're There are several f____from London to New There are several islands_____(沿着东海岸) there are是否等于 there‘re There are several over the Qiantang RiverThere are several b________ over the Qiantang River are there amy fish?选yes,there are 或yes,they`re或yes,there`re on sundays,there are many people in several ____(temple) There are several computer _________(company)along this street/ There are several reasons behind this phenomenon什么意思 there are several ways to learn english well as follows there are ___students in our school 1.several hundred2.several hundreds 3e.some hundred 4.several of hundred there are several children ------several countries A comes from B come from C from D to there are several children coming from several countries 引号部分这样说, here are 和there are是否能缩写成here're和there're的形式 There are several birds in the tree.There are ()() birds in the tree. there are的缩写是there’re 可为什么yes,there are 不能用缩写 There are several people over there,but----is known to me. A None B No one