Because of the Russian gas limit to Europe, attempts to use botanical fuel as a source of power．
| A．have made | B．having made |
| C．are being made | D．will be making |
—The fishermen should have been warned of the bad weather.
—___, but they didn't listen to it.
| A．Yes, they were | B．So were they | C．So should they | D．Yes, they should |
—John, I know nothing about playing tennis．I wonder if you could teach me.
—___．Just name the day.
| A．I'm glad | B．Go ahead | C．If you want it | D．With pleasure |
This is an illness that can result in lung cancer ____ left untreated.
| A．after | B．if | C．since | D．unless |
The suit fitted him well ____ the colour was a little brighter.
| A．except for | B．except when | C．except that | D．besides |
The flowers_______ sweet in the botanic garden attract the visitors to the beauty of nature.
| A．to smell | B．smelling | C．smelt | D．to be smelt |