80. Last week, we had a meeting. I told the chairman that I couldn’t attend it for I had something important to do, but he insisted _____ my being present.
| A．on | B．in | C．to | D．At |
What _______ pity that you must leave now! It is such _______ great fun to have dinner with you．
| A．a; a | B．a; the | C．/; a | D．a; / |
_______ the Internet is of great help, I don't think it's a good idea to spend too much time on it.
A If B While C Because D As
Nature has provided Shangri-la with endless natural treasures, _________ the land a happy home for the local people.
A made B having made C making D to make
The news reporters hurried to the airport, only _________ the film stars had left.
A to tell B to be told C telling D told
How I wish every family _______ a large house with a beautiful garden.
A has B had C will have D had had