课时作业(四十) Unit 5 Meeting your ancestors
Ⅰ.用所给词的适当形式填空
1.They questioned the________(accurate) of the information in the files.
2.This is an old vase________(date) back to the Ming Dynasty.
3.We should________(analysis) the problem so that we can solve it.
4.Some of the workers were exposed to________(radioactive)．
5.The river forms the________(divide) between the old and new parts of the city.
6.The police made a________(system) search of the building.
7.My desk isn't always this________(mess)－I've been working on a major project these days and I haven't had time to clear up.
