bài 1 

countable Nouns : bread,chair,pen,mouse,computer,robot,girl,tree,achievement,advice,window,beach, glass.

uncountable nouns: những từ còn lại

bài 2:

child - children

tree- trees

ruler-rulers

table -tables

bookshelf-bookshelves

plane-planes

desk-desks

girl-girls

bench-benches

family-families

student-students

teacher-teachers

house-houses

lamp-lamps

couch-couches

box-boxes

bài 3

1, there is one pencil on the table

2,there are two flowers in the garden.

3,there is one desk in the ...

4,there are four cats..

5,there are eleven classrooms in../

6,there are 24 teachers in...

7,there are 40 peoples on

8 there is one door...

9, there are five classes...

10, there are 12 rooms in...

baif 4

1 how much

2 how much

3 how many