We ____ last night , but we went to the cinema instead .
| A．must have studied | B．might study | C．should have studied | D．would study |
73. It is not right _____ a person who is _____ trouble.
| A．to make fun of; at | B．to make fun of; in |
| C．to be made fun of; in | D．to be made fun of; with |
72. We couldn’t read the notice on the board because several people were standing _______ it.
| A．in front of | B．in the front of | C．at the back of | D．in back of |
71. People eat a lot of sugar __________ cakes, soft drinks, sweets and so on every day.
| A．in form of | B．in the shape of | C．shaped by | D．at form of |
70. I know it is difficult __________ him to talk like the lecturer, but I think he should grasp every chance .
| A．of | B．for | C．with | D．Over |
69. With the guide leading the way, the visitors were able to travel through the forest not by air but _____ foot.
| A．by | B．on | C．in | D．with |