They have seen many interesting things ______ they started their trip last month

游客2025-07-13 18

问题 They have seen many interesting things ______ they started their trip last month.

选项 A、since
B、before
C、until

答案 A

解析句意：自上个月开始旅行以来，他们看到过许多趣事。本题考查连同的用法。before引起的时间状语多用于一般过去时中；until要和not连用，构成not．．．until句型，所以B、C应排除。故A项正确：在现在完成时中表示时间的两个标志性连词是 since和for，since后面接表示一个时间点的时间状语，for后接表示一段时间的时间状语。

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They have seen many interesting things ______ they started their trip last month

[originaltext]W:Isthereanythinginterestingwecandothisevening?M:Shall

Tommyhasalittledog.HernameisGoddy.Sheisprettyandinteresting.To

Tommyhasalittledog.HernameisGoddy.Sheisprettyandinteresting.To

Peoplecantravelinitinthesky.[br]Itcarriespeopleorthingsonariver.

ManyvendingmachinesareusedinChina.[br]Thethingssoldinvendingmachine

Youuseitforeatingandspeaking.[br]Youseepeopleandthingswiththem.A

PeoplegothereforMeals.[br]Peoplestudythingsthere.D

【B1】[br]【B4】A、newsB、thingsC、answersC根据句子意思是给每个问题的答案，故应该选择answer。

Hestealsthingsfromotherpeople.[br]Heisyourfather’sbrother.C

Hestealsthingsfromotherpeople.[br]HestudiesWithyouinschool.B

Yourwaystosolvethisproblem,______,seemprettyeffective.A、similartoher

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在中性点直接接地电网中，发生单相接地短路时，故障点的零序电流与零序电压的相

布加综合征通常分为A.6型 B.2型 C.3型 D.5型 E.4型

正常儿童脑脊液蛋白定量应为()A.

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