1b  2b  3d  4a   5a   7a    8d    9d   10b

2.extremely    3.unluckily     4.peace    5.different     6.orphanage      7.appearance     9.information    10.sociable    11.inventor    12.assistant    13.arrangements   14. succesfully

she has built this house since last year

they have begun to carry our their plan since they were at university

1d    2a    3a   4c  5b    6a    7b   8c  9b

she started learning to cook 2 years ago

1. nam said that he  came from Thanh Hoa city.

2.Mr. Cuong asked if I liked pop music

3. although the weather was bad, we visited bat Trang village

1c  2d  3a   4a    5c   6d