Look, the leaves of the newly planted tree have withered. You _______ it this morning.

1. A.
   should water
2. B.
   should have watered
3. C.
   you needed to water
4. D.
   had to water

Look, the leaves of the newly planted tree have withered. You _______ it this morning.

A. should water                  B. should have watered

C. you needed to water            D. had to water

Look, the leaves of the newly planted tree have withered. You _______ it this morning.

 Look, the leaves of the newly planted tree have withered. You _______ it this morning.

A. should water                  B. should have watered

C. you needed to water            D. had to water