1 to go to shool by bike when they were young
2 he had learnt to play the piano when she was young
3 I could cook as well as my mom
4 to have meals with his family
5 used to living in the country
6 far from my home, so I go to shcool on foot everyday
7 my sister improved her E-speaking skill
8 is only eaten at Tet
9 to live with her parents
10 are being planted by the students in the garden
11 is different from his
12 the development of the medical technology, there are many diseases....
13 is known that he was the.....
is known to have been the one making.....
14 is being written a prescription by the pharmacist
15 crowded HN is, the more polluted it becomes
16 Linh had a headache, she skipped the meeting
17 forward to seeing the docunemt.....
18 on reading about the traditions.....