11 It is obvious that he will win the game．
12 The earth moves around the sun．
13 Did anyone call when I was out?
14 It took us along time to mend the house
15 I don't quite follow what she is saying．
11 c obvious：显而易见的。clear：清楚的。It is not clear whether the incident was accidental or deliberate．还不清楚这一事件是意外的还是故意的。likely，possible和probable都有“可能的”意思。
14 D mend和repair都有“修理”的意思。Zhang san repaired the roof to ensure me house is windproof张三修理了一下房顶，使得房子不进风。build：建设；destroy：破坏：design：设计。
15 B follow此处有“理解”的意思。understand：懂，理解。This book is difficult to understand．此书难懂。observe观察；explain：解释：describe：描写。