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