1. .Some researchers are finding that daydreaming may be important to mental health. Daydreaming， they say， is good means of relaxation.
A. the；不填 B. 不填； the C. 不填；不填 D.不填； a
2. -----What should I wear to attend his wedding party?
------Dress ____way you like.
A. what B .however C. whatever D. how
3.The continuous rain _______ the harvesting of the wheat crop by two months.
A．set back B．set off C. set aside D. set out
4. In the reading room, we found her____ at a desk, with her attention____ on a book.
A. sitting fixing B. to sit fixed C. seating fixing D. seated fixed
