Shy and negative, I am unconfident to join any activities during that time.句中，形容词（表语）Shy and negative用逗号隔开，属于什么用法？这种用法有没有限制？即多个形容词（表语）的话，是否都可以将部分形容词（表语）用逗号隔开。
--Don't forget to have this machine fixed this afternoon, Darling--Oh, you reminded me of what I otherwise .A. may have forgotten B. must have forgottenC. had forgotten D. would have forgotten老师，这题C 为什么不可以看作...
Students move more progressively from understanding less to understanding more— understanding better what they already know and appreciate more what they already have experienced.老师好，请问appreciate more 中more理解成副词还是形容词？
If we decide that language did originally develop, possibly involving
from animal communication, we can only do so by assuming evolutionto be a
universally valid principal. 这句话改错说把by去掉。请问老师so这里指代什么，不去掉by好像也翻译的通。
Kids these days already have enough stress from school. They do not have time to study and do housework, too.这里的句子有否定词，怎么用了too,此时的too怎么理解呢？怎么讲?敬请专家老师详细讲解，最好附有更多例句，谢谢。
You can have a website with a few pages of basic information about your shops but it __________ be very complicated.
A. should
B. needn’t
C. doesn’t have to