42. a. held                   b. flew                         c. mend                       d. tent

43. a. quiet                 b. industry                  c. relative                    d. participant

44. a. nothing             b. clothes                    c. hold                         d. told

45. a. bear                  b. ear                          c. tear                          d. hear

46. a. lot                      b. floor                        c. box                          d. dog

47. a. small                 b. law                          c. tall                           d. plane

48. a. float                  b. noun                       c. about                       d. out

49. a. arrive                b. abroad                    c. around                    d. armchair

50. a. snowy               b. cold                         c. prison                     d. Chicago

51. a. great                 b. hate                         c. heat                         d. afraid

1.What time does he wash his face?

2.My brother is an engineer.

3.How many students are there in your school?

4.Every morning Nam gets dressed at 6.30.

5.My school is in the country.

6. How do you spell your name?

7.How many teachers are there in your school?

8.My brother is twenty years old and he is very strong.

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chịu

Tuổi trưởng thành sinh dục của chuột là:

 A. 1 – 3 tháng                 B. 3 - 4 tuần                C. 4 – 6 tháng              D. 2 – 3 tuần