The boy is new here. We must ________ him.

1. A.
   take care
2. B.
   take care of
3. C.
   take careful
4. D.
   take careful of

The ________ boy is ________ doing his homework．

1. A.
   careful, carefully
2. B.
   careful, careful
3. C.
   carefully, carefully
4. D.
   carefully, careful

 -___________ the boy is drawing the picture!

   A. How carefully   B. How careful   C. What careful     D. What carefully