Help meeeeeeeeeeeeeeeeeee: Một xí nghiệp cơ khí được giao sản xuất 500 máy bơm nước trong một thời gian nhất định.Do cải tiến kỹ thuật tăng năng xuất lao động,mỗi ngày xí nghiệp sản xuất thêm 5 máy bơm nên chẳng những xí nghiệp hoàn thành sớm công sớm 1 ngày mà còn sản xuất thêm được 70 máy bơm nữa.Hỏi số máy bơm dự định sản xuất trong một ngày và số máy bơm dự định theo kế hoạch ban đầu.

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Read the passage then mark the letter A, B, C or D on your answer sheet to indicate the best answer for each statement or question: Every year students in many countries learn English. Some of these students are young children. Others are teenagers. Many are adults. Some learn at school, others study by themselves. A few learn English just by hearing the language in film, on television in the office, or among their friends. But not many are lucky enough to do that. Most people must work hard to learn another language. Learning another language! Learning English! Why do all these people want to learn English? It is not difficult to answer that question. Many boys and girls learn English at school because it is one of their subjects. They study their own language, and Math... and English. (In England, or America, or Australia, many boys and girls study their own language which is English, and Math,... and another language perhaps French, or German, or Spanish.) Many adults learn English because it is useful for their work. Teenagers often learn English for their studies, because some of their books are in English at the college or university. Other people learn English because they want to read newspapers or magazines in English. Question 28: According to the writer, ________ . A. only adults learn English B. no children like learning English C. English is only useful to teenagers D. English is popular in much of the world Question 29: Many people learn English by________. A. watching videos only B. hearing the language in the office C. talking with the film stars D. working hard on their lessons Question 30: Many boys and girls learn English because ________. A. English can give them a job A. English can give them a job C. their parents make them D. they have to study their own language Question 31: In America or Australia many schoolchildren study ________. A. English as a foreign language B. English and Math only C. such foreign languages as French, German, and Spanish D. their own language and no foreign language Question 32: Many adults learn English because ________. A. their work is useful B. they want to go abroad C. most of their books are in English D. it helps them in their work