there are several causes accounting for this disaster怎么翻译?尤其是accounting for

There are several of There are several f____from London to New There are several islands_____(沿着东海岸) There are several over the Qiantang RiverThere are several b________ over the Qiantang River 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, There are several birds in the tree.There are ()() birds in the tree. There are several people over there,but----is known to me. A None B No one There are several ways learning English a little There are several ways learning English a little空填 make made making还是 to make求讲解原音. there are several bird in the tree ,改为同义句：there are —— ——bird in the tree . I think there are several types of memory in our brain ___? A.do not I B.are not there There are several _______ in this street.A:hat storeB:hasts storeC:hats storesD:hat stores life is like angry birds.There are always several pigs laughing when you los