Choose the letter A, B, C or D to indicate the underlined part that needs correction. 1. I drink two bottles of grape juice last night A. bottles B. juice C.drink D. of 2. For years, vaccines have been used for prevent diseases A. prevent B. have been used C. diseases D. For
2 câu trả lời
Choose the letter A, B, C or D to indicate the underlined part that needs correction.
1. I drink two bottles of grape juice last night
A. bottles B. juice C.drink D. of
⇒ drink = drank ( vì last night là quá khứ )
2. For years, vaccines have been used for prevent diseases
A. prevent B. have been used C. diseases D. for
⇒ for = since ( hiện tại hoàn thành nhé )
