中国大学MOOC: There are ____________ trees on the hill.
举一反三
- They________(plant) trees on the hill. Do you see
- 中国大学MOOC: Some girls are on the hill. Where are ____________?
- There are ____________ trees on the hill. A: a thousands B: thousands C: thousand of D: thoudsands of
- On the hill are maple trees _____ leaves have turned red.
- —— What are they doing over there?——They ___trees on the hill. A: plants B: plant C: will plant D: are planting