英语词组的题

1.He was fully ____of his own shortcomings.

A.sensitive B.sensible C.serious D sincere

答案是B 能告诉我一下其他几个有没有固定的词组 这个B的词组是什么意思?

2.The magnificent museum is said___about a hundred years ago.

A. to be built B to have been built C.to have built D.to have being built

答案是B 后面已经有ago了为什么还要用过去完成时 为什么不是A

3.That mountain village can't be ____by telephone yet.

A.reached B.achieved C.attached D.arrived

答案是A 不太明白～

觉察到某事物
Are you sensible of the dangers of your position?
你觉察到你处境中的危险了吗?

A +to,c 好像没有,D好像也没有

B,据说是一百年前就已经造好了,当然是过去完成时了,

信号到达啊什么的就是用REACH的,算是习惯用语了