Give the correct form of the verbs to complete the sentences.

1.What … your sister (do)...?

2.Mary and Tom (not/go)...swimming in the lake. 

3.How often … she (go)...shopping in the supermarket?

4.Mai (speak)...Vietnamese very well.

5.Our dogs (not eat)..bones.

6.Mai’s parents (be)..very friendly and helpful.

7.My mother (make)..breakfast.

8.My sister (do)..the laundry.

9.My father never (make)..the bed.

10.My brother (not do)...the dishes.

108/702 = 2/13

45/105 = 3/7

120/168 = 5/7

52/65 = 4/5

Số bò sữa là:

325:(3 + 2)x3=196(con)

Số bò thường là:

325-196=129(con)

                 Đáp số:129 con.

1. People in Vietnam don't eat with knives and forks.

2. It's not polite to take the last piece of food.

3. Chinese food is more delicious than Japanese food.

4. You should offer the last piece of food to another person.

bài giải

Độ dài đường chéo thứ hai là: