中国大学MOOC: The bird was seen _____ off the tree.
举一反三
- The bird was seen _____ off the tree. A: fly B: flys C: to fly D: flied
- There is a bird ______ the tree and there are many apples ______ the tree. A: in, on B: in, in C: on, on D: on, in
- 中国大学MOOC: —Is this ____________ (an / the ) apple tree? —No, it is ____________(an / the ) orange tree.
- There ___ a bird in the tree.
- There ___ a bird in the tree.