I. Choose the word that has a different stress pattern from the others in the group.

1. A. affect B. pollute C. effect D. litter

2. A. cholera B. pollutant C. permanent D. groundwater

3. A. radiation B. political C. historical D. contaminant

4. A. seriously B. measurement C. scientific D. logical

5. A. aquatic B. historic C. physic D. bonical

(Bn Huyền xink gái giúp vs ặ

)

Những người giúp mik đều xink trai đẹp goái nka

1. Rút gọn các biểu thức sau:

a. A = 100² - 99²+ 98² - 97² + ... + 2² - 1²

b. B = 3(2² + 1) (2⁴ + 1) ... (2⁶⁴ + 1) + 1²

c. C = (a + b + c)² + (a + b - c)² - 2(a + b)²

I. Read the text and choose one suitable word to fill in the blank.

Foreign English language teachers for schools in Vietnam

has to is teaching cover teacher

more and high decided
Vietnam ...(1)... well on its way to integrate with the world and for that reason emphasis on English language skills ...(2)... become very essential.

Recently, the City Department of Education and Training ...(3)... to recruit foreign native English speakers to teach in elementary, middle and ...(4)... schools in Vietnam.

The policy calls for social contributions to improve English language ...(5)... from primary schools to senior high schools by employing only foreign native English teachers. Each student will chip in VND120,000 ($5.8) a month to ...(6)... the $35 an hour salary of the foreign ...(7)... .

Compared ...(8).... traditional English teaching methodology, it is better that thousands of students in the City have a chance of practicing listening ...(9)... speaking skills with native English speakers, who create a ...(10)...exciting atmosphere in classrooms for students.

(rảnh tt?)