A. do B. to do C. doing D. done 3、Some cities have passed laws that allow coal and oil ___only if their sulfur content is low. A. burning B. to burn C. being burned D. to be burned 4、The team really looks good tonight ,because the coach had them_...
25.What is being done to make T-shirts more attractive? [A] A variety of new styles are being designed. [B] The price is being lowered again and again. [C] Advertisements are being widely used. [D] The traditionally used material is being replaced...
2) be worth doing = be worthy of being done to be done This matter is worth considering. This matter is worthy of being considered. to be considered. 3) It is worthwhile doing sth. to do sth. It is worthwhile to consider the matter...
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