【推荐1】I was surprised at the way ________ which he treated the old man. (用适当的词填空)

【推荐2】They can build more factories on the land, and ______ exchange they have to build houses for people there.（用适当的单词填空）

【推荐3】I was admitted into Nanjing University in 2016, and then majored ________ math. (用适当的词填空)

【推荐1】These are the papers to be reviewed, all of which are intended ________ the coming exams. (用适当的词填空)

【推荐2】Project managers evaluate the performance of the team members in _______(term) of what they produce for projects, rather than the amount of time they spend on them.（所给词的适当形式填空）

【推荐3】I hear ______ my cousin every two months.