书名：Longman Intermediate
页数：最新版
题目：105 109 114
疑问：
这礼拜要测验者可一起解看看
105The error was noticed after Ms. Radice ___ the order to the supply
(A)had sent in (B)sends in (C)has sent (D)is sending
答案给(A)，为何用过去完成，不能用(C)现在完成?
109 The photographer that we hired to take pictures of the banquet will be
accompamied ___ his assistant.
(A)with (B)by (C)to (D)from
答案给(B)，为何(A)不行?accompamy+with不是固定吗?
114Our departmental staff meetings are held ___ in the conference rome on the
third floor.
(A)rarely (B)every week (C)always
为何(C)always不行?

“过去完成”是过去的过去；“现在完成”是从过去某段时间到现在持续在做的事。105的意思是指 在送出之后才发现错误，所以使用过去完成式。109 will be accompanied 是被动式，所以后面用by去说明执行这动作的人如有解释错误的地方 待其他版友解答囉～