1. [单选题]5． Please cut _________ the meat and let's make dumplings．
A. up
B. down
C. into
D. off
2. [单选题]What does the author advise people to do ?
A. Sleep in the way animals do.
B. Consult a doctor if they can’t sleep.
C. Follow their natural sleep rhythm.
D. Keep to the eight-hour sleep pattern.
