When she was doing the cleaning yesterday, Mum found the ring that she _____ years ago.
| A．loses | B．has lost | C．lost | D．had lost |
For a long time they walked without saying ___word .Jim was the first t break _____silence.
| A．the, a | B．a ,the | C．a ,/ | D．the,/ |
Tom owns ______larger collection of ______books than any other student in our class.
| A．the ,/ | B．a,/ | C．a ,the | D．/, the |
The Wilsons live in ______A-shaped house near the coast . It is _______17th century cottage.
| A．the, / | B．an, the | C．/, the | D．an ,a |
It is ___world of wonders, _____world where anything can happen.
| A．a. the | B．a, a | C．the, a | D．/,/ |
While he was investigating ways t improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
| A．a ,/ | B．a ,the | C．/, the | D．the ,a |