1．The boss demanded that Mary ________(finish) the work within a week.
[答案] (should) finish
2．A study shows ________ average we spend about 8.5 hours on work every day.
[答案] on
3．I took ________ for granted that he was a native Italian because he spoke Italian so well.
[答案] it
4．Wang Yi, China's Minister of Foreign Affairs, made a quick response ________ the question by that reporter.
[答案] to
