Some Martian rock structures look strikingly like structures on Earth that are known _____ by microbes. (2017) A. having been created A. having been created C. to have been created D. to be created
【简答题】连词成句 1. get,I, brother , what , younger , should , my , for 2. you , gift , ever ,best , received , what's , have , the 3. album,how,photo,a,about 4. picnic , about , Saturday , what , next, a ,having...