1.-Why are you staring at the world map?
-Oh,I am at a loss about ()caused the three typhoons to happen at almost the same time.
A.what it was thatB.what that it wasC.why it was thatD.it was why that
答：A
译：你为什么一直盯着世界地图在看?
哦,我不明白究竟是什么使得三个台风几乎同时产生.
析：括号中本只需要填一个what即可.it was ___ that ...的强调.
2.It is true that we do not know what we have got until we lose it,but it is also true that we do not know what we()until it arrives.
A.had missedB.missedC.have been missingD.will have missed
答; C
此句难在翻译.难点在miss的理明.是错失还是想念?