(x-5)^2019 = (x-5)^2020

Whom / famous song / "White Christmas" / write

I don't know many people but at least I know some.  (few)

->I don't ......................................................................

Cho A = 1+2¹+2²+2³3+...+2²⁰⁰⁷

a)Tính 3A

b)Chứng minh : A = 2²⁰⁰⁸--1

(2⁸+8³):(2⁵.2³)

(1² + 2³ + 3⁴ + 4⁵).(1³+2³+3³+4³).(3⁸-81²)

Cho tam giác ABC có AC=4cm , AB=6cm . M là trung điểm của AB . Đường thẳng d qua M và cắt AC tại N . Tính AN

I. Choose the word whose underlined part pronounced differently from that of the others.

1.         A. respond                 B. novel                        C. work                       D. cotton

2.         A. wicked                  B. naked                       C. needed                    D. worked

3.         A. viable                     B. dynamite                  C. priority                    D. responsible

4.         A. ache                       B. chemist                    C. chalk                       D. character

5.         A. father                     B. healthy                     C. weather                   D. clothing

5. They were too weak to lift the rock.

1.         A. managerial             B. determination          C. unbelievable           D. inability

2.         A. equality                 B. difficulty                 C. discovery                D. simplicity

3.         A. plentiful                 B. adequate                  C. sociable                   D. commercial

4.         A. citizenship             B. category                   C. benefit                    D. priority

5.         A. temperature           B. thunderstorm           C. mysterious              D. ultimately