26.being in a hurry, _______

A the door was left open  B he left the door open  C he was left the door open  D he had the door open

选B

27. the professor came into the lab, ___by his assistant.

A following  B followed  C being followed D to follow

选B

28. with trees, flowers and grass ____everywhere, my native town has taken on a new look.

A planting  B planted   C to plant  D to be planted

选B

29.weather ___, we’ll go fishing tomorrow.

A is permitted  B permits  C permitted  D permitting

选D

30. the key ___ , I couldn’t enter the office.

A was lost   B having been lost  C be lost  D being lost

选B