Câu 1: Biết độ dài 3 cạnh của 1 tam giác tỉ lệ với 3;5;7 và chu vi của tam giác 150 cm. Hãy tính độ dài mỗi cạnh của tam giác đó.

Cho x và y là hai đại lượng tỉ lệ nghịch, khi x=-5 thì y=-6

a) Tìm hệ số tỉ lệ a của y đối với x

b) Biểu diễn y theo x

c) + Tính y khi x = -15

+ Tìm x khi y =8

1. Each/ my three sisters /be /very different /the others.

=>Each of my three sister are very diferent than the others.\

2. The children /rehearse/ play/ school/ clelabration/ moment.

=>The children are rehearse the play at the school celebration at the moment.

Con làm đã đúng chưa ạ? Hãy giúp con, con cảm ơn nhiều lắm!

Why do we learn English? (Write about 150 words about this issue. Thank you so much.)

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 from 31 to 35.

Always arrive early. If you do not know (31) _____ the organization is located, call for exact directions (32) ___ advance. Leave some extra time for any traffic, parking, or unexpected events. If you are running late, call right away and let someone know. The best time to arrive is approximately 5 - 10 minutes early. Give yourself the time to read your resume one more time, to catch your breath, and to be ready for the interview. Once you are at the office, treat everyone you encounter with respect. Be (33) _____ to everyone as soon as you walk in the door. Wear a professional business suit. This point should be emphasized enough. First (34) ____ are extremely important in the interview process. Women should (35) _____ wearing too much jewelry or make up. Men should avoid flashy suits or wearing too much perfume. It is also important that you feel comfortable. While a suit is the standard interview attire in a business environment, if you think it is an informal environment, call before and ask. Regardless, you can never be overdressed if you are wearing a tailored suit.

Question 31:

A. when

B. why

C. where

D. that