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
答案:B
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
答案:B