Question

I knowthey _______ tired（疲勞）．

1. A.
   are feel
2. B.
   don'tfeel
3. C.
   don't
4. D.
   feelnot

Answer 1

B
肯定陳述句變?yōu)榉穸�陳述句一般在助動詞后面直接加not 。因為feel為實義動詞，所以助動詞為do。