26.Last year,Ba went to Nha Trang.
27.He stayed at a friend's house.
28.His friends took him to see lots of interesting places.
29.Ba saw sharks and many different types of fish.
30.He bought a lot of gifts for his family.

Phần B :
31.Why don't you join us on our trip to Dalat ?
32.I spend two hours each day doing my homework.
33.What is the height of the Big Ben Clock Tower ?
34.He takes care of the sick people.
35.My father drives carefully.

2.D : to go
3.A : to brush
4.D : Neither do I
5.D : a & b
6.A : Fluently
7.B : Viewer
8.A : Shouldn't
9.D : Wear
10.A : Disease