--Why doesn’t Sam come here with you?
--I’m sorry, but he _______ from ill health at the moment.
| A．suffers | B．suffered |
| C．is suffering | D．was suffering |
______, I suppose, and the housing problems for the low-income families could be solved.
| A．If you double your efforts | B．To make some more efforts |
| C．Some more efforts | D．Making greater efforts |
As it turned out to be the most important meeting in the year, you ____ so casually.
| A．Shouldn’t dress up | B．shouldn’t have dressed up |
| C．needn't have dressed up | D．couldn’t dress up |
With his sporting ambition______ and ________ to succeed in his new life, Li Ning decided to launch a new brand of sportswear, competing with global giants like Nike and Adidas.
A. to achieve; determined
B. to be achieved; determining
C. achieved; determining
C. to be achieved; determined
Green economy offers a new model _____ people could both protect the climate and develop the economy, according to what Li said at the International Conference.
| A．that | B．why | C．where | D．which |
Experts found a large quantity of wall paintings, some of them_____ the Han Dynasty.
| A．dating back to | B．dated from | C．dated back to | D．dates from |