38.(Different fourteen) crops were (being grown) 8,600 years (ago) by some of the world’s earliest (farmers) A错是肯定的。,那B呢,是不是过去进行时被动啊,如是那ago不是时间点吗,怎么用进行时呢
13. Fossils, traces of dead organisms found in the rocks of Earth’s crust, reveal _____ at the time the rocks were formed. (A) what was like (B) was like life (C) what life was like (D) life was like 我觉得A也可以啊,把what直接理解为作从句主语,可以吗?