what B. who C. which D.when12. A. is B. are C. am D. were13. A. It's B. Itself C. It D. Its14. A. us B. them C'. you D. him15. A. include B. includes C. including D. includcd 相关知识点: 试题来源: 解析 【解析】 BDAABCDBABCADBC 本文介绍近代海洋学家雅克...
① I was having trouble in our biology class ②Did you want to meet this afternoon ③It is no problem ④the diffcrcnt thcorics of plant reproduction ⑤Anything in particular ⑥Is that okay with you ⑦I just getting them mixcd up with one another...