It is necessary and required that dental technicians and others who work with X-rays limit his exposure to these high penetrating rays.
Giải bởi Vietjack
Giải thích:
“dental technicians and others” là danh từ số nhiều
→ sửa “his” thành “their”
Tạm dịch: Điều cần thiết và bắt buộc là các kỹ thuật viên nha khoa và những người khác làm việc với tia X phải hạn chế tiếp xúc với các tia xuyên thấu cao này.
Choose C.
________ a very big breakfast, the kids refused to have anything for lunch.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
My boss' anger suddenly erupts into furious shouting several days ago.
I presume that they're not coming________ they haven’t replied to the invitation.
I remember she wore a________ dress to go out with her boyfriend last week.
Jane found herself in conflict with her parents over her future career.
Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
Some students only cram for tests when there is little time left, so their results are not satisfactory.
Buying an IELTS certificate and getting rid of difficulties to achieve a high score tempts many candidates to pay (34) ______ money and avoid the hassle of taking part in the exam!
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges
Jolie is reading a magazine on famous people, asking her friend.
- Jolie: "Do you think celebrities today tend to focus more on wealth rather than achievements?"
- Jolie's friend: "_____________. And this sets bad examples for young people."
Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.
During the interview, you should try to_________ a good impression on your interviewer.
