选择------------------------------------let's go together A:i am going to the bookstore buy a book

问题描述:

选择------------------------------------let's go together A:i am going to the bookstore buy a book
b:i go to the bookstore

选A.be going to 表示要去.,表将来时,还没去.根据后面的语境,Let's go together.说明是打算去,邀请别人一起去.
B选项表示一般现在时时,表一般情况而不是当下的情况.