1. the plants if you don't water them. a) will grow, b) grow, c) won't grow 2. i would buy that bag if it cheaper. a) is, b) were, c) will be, d) would be 3. if tom on coast, he will catch a cold. a) puts, b) doesn't put, c) won't put !

the plants won't i would buy that bag if it were cheaper.if tom doesn't put on coast, he will catch a cold. 

1.  the plants if you don't water them.

a) will grow, b) grow, c) won't grow

2.  i would buy that bag if it cheaper.

a) is, b) were, c) will be, d) would be

3.  if tom on coast, he will catch a cold.

a) puts, b) doesn't put, c) won't put