—I think trees ____________ twice a week in such hot weather.
—Yes, I agree. Or they may die without water.
A.must water. | B.are watered. |
C.must be planted. | D.must be watered. |
—I think trees ____________ twice a week in such hot weather.
—Yes, I agree. Or they may die without water.
A.must water. | B.are watered. |
C.must be planted. | D.must be watered. |