16. As Christmas was coming, the town began a ___ clearing on a large scale. A. through B. thorough C. though D. thought 17. E-mail writing has become the usual means of communication ___ people some distance away. A. for B. on...
On November 19, a large-scale documentary on climate change was broadcasted on the CCTV 9 channel. Named after "Cold and Warm, We Share Together", the documentary is co-pro...
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