The flowers （） often.
A: must be water
B: must be watered
C: must watered
A: must be water
B: must be watered
C: must watered
举一反三
- The flowers ( ) every day. A: must be water B: must be watered C: must watered D: must water
- The flowers ____ every day, or they'll die. A: must wat B: should water C: can be watered D: must be watered
- The flower must()once a day A: watering B: be watered C: to water
- The flowers must ____(water)every day.
- These flowers must_____once a day.() A: watering B: be watered C: water D: to water