Han Han is a popular writer. His new bookwill ______ this September.

Mr Smith is________my English teacher; he is also my friend[ ]

Did you buy the dictionary—- No. My lost dictionary was found, so I ________ a new one.

Teachers should allow their students to study ________ from the start, and it is bound to result in their ability to deal with problems on their own.

下列各组词语中，有两个错别字的一组是（ ）