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两道英语语法They(build)anewbridgeovertheriverbytheendofnextyear.They(build)anewbridgeovertheriverbytheendoflastyear.

题目详情
两道英语语法
They_____ (build) a new bridge over the river by the end of next year.
They_____ (build) a new bridge over the river by the end of last year.
▼优质解答
答案和解析
1 will have built
2 had bulit