A snake bit him ___________ he went to see a doctor at once.

The snake bit him ________ the hand．

1. A.
   by
2. B.
   on
3. C.
   in
4. D.
   from

Put a bit of sugar in the coffee, and it will ________ better.

1. A.
   sound
2. B.
   taste
3. C.
   look
4. D.
   make

A snake bit him ______ he went to see a doctor at once.

1. A.
   if
2. B.
   where
3. C.
   because
4. D.
   so