Inadditiontothefarmingthey
问题详情：
In addition to the farming they ______ since the 1990s, the Smiths have started a small business.
done B. had been done C. were doing D. have been doing
【回答】
D
知识点：动词时态与语态
题型：选择题
问题详情：
In addition to the farming they ______ since the 1990s, the Smiths have started a small business.
done B. had been done C. were doing D. have been doing
【回答】
D
知识点：动词时态与语态
题型：选择题
