请教文法题

楼主: fangjames (fangjames)   2019-08-20 23:19:01
Hi all,
The event coordinator recommends Zemecky Caterers because they _____ that they
can handle complicated means.
A. are shown
B. showing
C. have shown
D. Shows
我选A 但答案是 C
complicated 是过去简单式 为何答案是现在完成式
不太懂请大大们开示一下 感恩
The Stalmer Library is _____ to announce its second annual international Book
Fair.
A. exciting
B. excited
C. excitement
D. excite
这题我选A 但答案是B
人不是用过去分词吗 物+ing 表情绪的话?

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