根据句式结构可以判定本句是一个强调句式,强调的是时间状语从句“not until man had learned how to make iron and steel”。主语是the construction,和动词make之间存在被动关系,并且前后时态都表示过去概念,因此应用一般过去时的被动语态,主语是the construction,be动词应用was。故填was made。
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It was not until man had learned how to make iron and steel that the construction of various machines___possible.A.were madeB.madeC.had madeD.was made 相关知识点: 试题来源: 解析 D.直到人类学会炼制金属,各种机械的制造才成为可能.制造是单数,而且是被人做.时态发生在制金属之后. 分析总结。
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To make an iron nugget, place 1 iron ingot in the 3x3 crafting grid.When making an iron nugget, it is important that the iron ingot is placed in the exact pattern as the image below. In the first row, there should be 1 iron ingot in the first box. This is the Minecraft crafting ...
Tantric sex is a long-lasting, slow form of sex that focuses on connection and pleasure. Sex therapists explain how to try it, with a partner or on your own.
How to Make an Iron Man Mask: This instructable is one of two parts detailing how to build an arc reactor and an iron man mask. Both work together but are written as seperate instructables for clarity. This part is for the Mask and you can find the Arc R
It was not until man had learned how to make iron and steel thatthe construction of various machines possible.A. were made B. was made C. had made D. made 答案 【解析】B相关推荐 1【题目】132. It was not until man had learned how to make iron and steel thatthe construction of ...
1132.It was not until man had learned how to make iron and steel thatthe construction of various machines possible.A.were made B.was made C.had made D.made132.It was not until man had learned how to make iron and steel that the construction of various machines possible. A. were made...
This Minecraft tutorial explains how to craft an iron sword with screenshots and step-by-step instructions. In Minecraft, an iron sword is one of the many weapons that you can make. The iron sword has +6 attack damage. Let's explore how to make an iron s