As we approached the work site,the wo

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As we approached the work site,the wo
As we approached the work site,the workers were seen______the new house.
A.building
B.build
C.built
D.to built

选A
这个工人被看到正在建新房
举个例子来说吧I saw him play football on the playground just now.变成被动语态应该是He was seen to play football on the playground just now.
I saw him playing football when I passed the playground.变成被动语态应该是He was seen playing football when I passed the playground.
再问：这样的话B和D选项有什么区别

As we approached the work site,the wo As we approached the work site,the workers were seen_ As we approached the work site,the workers were seen ____the As we approached the village we saw many new houses____.A.bu Work when the porn site. Work on the mill site everyday. 一些英文题 1.When we approached the campus,________.A.we saw the 英语翻译Then one day the mystery was solved.as i approached the 5.The bad weather has___the work on the building site. 英语翻译1）We approached the camp silently.2）The time is approach 英语短文改错As World Environment Day is approached,the Students’ U 英语翻译During the day we work and play,at night wo sleep.Our bo