—What did David demand in the meeting just now?
—________ a chance to join the Debating Club.
| A．Being offered | B．Having been offered |
| C．To be offered | D．To have been offered |
What do you imagine _____ him from going?
| A．to prevent | B．preventing | C．to have prevented | D．prevented |
My friend Mary is _____ beautiful girl and _____ girl everyone likes to work with.
| A．a, a | B．a, the | C．the, a | D．the, the |
She may have missed the train, in _____ case she won't arrive for another hour.
| A．whose | B．that | C．which | D．what |
Many countries, for example, Mexico and Japan, _____a lot of earthquakes.
| A．have | B．having | C．to have | D．having had |
Mother told Jim to watch the milk until it boiled and then _____ off the gas.
| A．turn | B．turning | C．turned | D．having turned |