1、判断句子正误 Myself did it yesterday .I did it myself yesterday .I myself did it yesterday .
2、Who's this speaking?——That's Mary.
Who's that speaking?——This is Mary.
3、It's so a good book that everyone likes to read.
It's such a good book that everyone likes to read.
It's so good a book that everyone likes to read.
4、English is difficult to learn.——so is it
English is difficult to learn.——so it is
5、……on either sides of the street
……on either side of the street
……on both sides of the street
6、They carried the wounded soldier to ______(safe)