14. We don’t want ___ any comrades lagging behind. A. there being B. there to being C. there to be D. there is 15.Nowhere in nature is aluminum found free, owing to its always ___ with other elements, most commonly with oxygen. A. combined B. havi...
1. There may be a combination of factors which contribute to/are responsible for/can explain . 也许有一些因素造成/可以解释。 2. There are probably three/many/several/a variety of reasons for this dramatic/significant increase/decline in . 引起显著...
C) Children should be allowed freedom to grow through experience. D) A writing career, though attractive, is not for every child to pursue. Passage Two Questions 62 to 66 are based on the following passage. By almost any measure, there is a boom in...
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