Giúp mìh C3 với ạ!

cho dây dẫn mang dòng điện đặt trong từ trường 10T cách điểm M là 0,2cm. Hẫu tính cường độ dòng điện trong dây dẫn đặt tại M

Read the following passage and mark the letter A, B , C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Speech is one of the most important (13) ______ communicating. It consists of far more than just making noises. To talk and also to (14) ______ by other people, we have to speak a language, that is, we have to use combinations of (15) ______ that everyone agrees to stand for a particular object or idea. Communication would be impossible if everyone made up their own language.

Learning a language properly is very (16)______ . The basic (17) ______ of English is not very large, and not only about 2,000 words are needed to speak it quite (18)______. But the more idea you can (19) ______ the more precise you can be about their exact meaning.

Words are the (20) ______ thing we use in communicating what we want to say. The way we (21)______ the words is also very important. Our tone of voice can express many emotions and (22) ______ whether we are pleasedor angry, for instance

Điền vào ô 14

A. be understood           

B. be spoken               

C. be examined           

D. be talked