We don’t think the experiment is ___ failure. At least we have gained ___ experience for future success.
| A．the; a | B．a; / | C．a; an | D．the; the |
________such a heavy loss，the businessman didn’t have the courage to go on.
| A．Having suffered | B．Suffering |
| C．To suffer | D．Suffered |
I’ve worked with children before，so I knew what ________ in my new job.
| A．expected | B．to expect |
| C．to be expected | D．expects |
Generally speaking，prices of daily goods ________ through the Internet are lower than store prices.
| A．to buy | B．are bought |
| C．buying | D．bought |
The country has already sent up three unmanned spacecraft，the most recent ________ at the end of last March.
| A．has been launched | B．having been launched |
| C．being launched | D．to be launched |
________tomorrow’s lessons，I have no time to play with you.
| A．Not preparing | B．Not prepared |
| C．Not having prepared | D．Having not prepared |