The teacher______have thought Johnson was worth it or she wouldn't have wasted time on him,l suppose.
| A．should |
| B．can |
| C．would |
| D．must |
He is a man of few words, and seldom speaks until _______ to.
| A．spoken | B．speaking |
| C．speak | D．be spoken |
Having a trip abroad is certainly good for the old couple, but it remains ______whether they will enjoy it.
| A．to see | B．to be seen |
| C．seeing | D．seen |
The more you practise _____ English, the better your _____ English will be.
| A．to speak; speaking | B．speaking; spoken |
| C．spoken; spoken | D．spoken; speaking |
The flowers ________ sweet in the garden look ________ and attract the visitors to the beauty of nature.
| A．to smell; beautifully | B．smell; lovely |
| C．are smelt; beautiful | D．smelling; lovely |
The possibility of a murder _____, the police have set about looking for the clues to her suicide.
| A．to be ruled out | B．to rule out |
| C．having ruled out | D．having been ruled out |