I. Điền giới từ vào chỗ trống
1. We've lost ..X. touch ..with. each other in 2008.
2. Don't phone us ..between. 7a.m and 8a.m. I am very busy at this time.
3. The orphan is brought ..up. by his uncle.
4. I think we should keep .in.. touch forever.
5. The beach is crowded ..with. the tourists in...