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
As we have mentioned previously, we will be dedicated to solving the problem within the current framework, rather than _____ a new one.
A. establishing B. establish
C. to establish D. established
