Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions. At first life was difficult for me because of I didn’t understand English

giúp mk với ạ ,hứa sẽ đán giá 5 sao .cảm ơn trước ạ
1) Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.
5. At first life was difficult for me because of I didn’t understand English.
A B C D
6. Copper comes from seven types of ores that also contain the other materials.
A B C D
7. Silicon chips contain thousands of circuits in an area as smaller than a fingernail.
A B C D
2)
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
8. He rarely forgets to do his homework, _______?
A. doesn’t he B. is he C. does he D. isn’t he
9. You need to keep milk cold. Put it in the_______.
A. cupboard B. basin C. Fridge D. freezer
10. My brother is eleven. He is still a/ an_______.
A. child B. Teenager C. adult D. infant
11. Ona clear night, the moon_______so brightly that you can see your shadow.
A. shines B. is C. Seems D. pours
12. Tom_______a lot of presents on his birthday.
A. gave B. was giving C. was given D. was been given
13. You look terrific today! That color really_______you!
A. wears B. matches C. Fits D. suits
14. The _______of the experiments proved to be very informative.
A. consequences B. solutions C. effects D. results
15. Children should be_______to realize their full potential.
A. encouraging B. courageous C. encouraged D. discouraged
16. The food was so hot _______.
A. that it burned my tongue    B.for it to burn my tongue
C. and then it burned my tongue            D.to have burned my tongue