When ________ to the market, these products were very popular.
| A．introducing | B．introduced |
| C．introduce | D．being introduced |
—It's late. I have got to leave now. —OK. __________
| A．Thank you | B．Don't worry |
| C．I'm sorry for it | D．Take care |
We should think carefully about _____ Mr Needham said at the meeting.
| A．that | B．what |
| C．which | D．how |
These events are _____ to each other.
| A．made | B．connected |
| C．linked | D．associated |
When you visit France, it is a _____ if you cannot speak French.
| A．harm | B．fault |
| C．error | D．disadvantage |
The new regulations will be of great _____ to us all.
| A．advantage | B．favour |
| C．benefit | D．kindness |