Ourresources andfine policy can certainly provide foreigners with the advantages of developing their business.

It is the third time I_____this school and I began tolike this place _______I came here. [ ]

Students are given a lot of exercises to do, _______ to improve their grades. [ ]

Zheng He’s first stop during the expedition was in________ is a part of Vietnam today.

He is so ____ in writing his report that he has no time to take a walk.