The boy ______ the window now. A: A.is cleaning B: B.are cleaning C: C.clean D: D.cleaned

______ water there is in the lake! A: What clean B: What a clean C: How clean D: How a clean

用大量的水清洁皮肤。 A: Clean your skin with a large quantity of clean water. B: Clean your skin with a big quantity of clean water. C: Clean your skin with abundant clean water. D: Clean your skin with generous clean water.

The classroom needs______. A) clean B) to clean C) to be cleaned D) being cleaned A: clean B: to clean C: to be cleaned D: being cleaned

The room wasn’t ____ for the doctor to operate on the lady. A: quite a clean B: enough clean C: clean enough D: much a clean

The classroom needs____. A: clean B: cleaned C: to clean D: cleaning

You ________ clean that room. It is very clean now.

The classroom must ______. A: be kept clean B: keep cleaned C: kept clean

The classroom needs _____. A: clean B: to clean C: to be cleaned D: eing cleaned

The classroom needs______. A: clean B: to clean C: to be cleaned D: being cleaned