you've forgot

we have

\(\frac{2a}{a^2+c+1}\le\frac{2a}{2a+c}=1-\frac{c}{2a+c}=1-\frac{c^2}{2ac+c^2}\)

1. My brother told me to post that letter for him

2. He said (that) he had made some progress in his English

3. A tourist asked if I knew the way to the station

1. I don't know how ____________ a birthday u

A. make B. making C. to make D. made

2. ____________ you post this letter for me, please? – OK.

A. Do B. Are C. Will D. Shall

3. The man ____________ in the garden is my grandfather.

A. works B. working C. worked D. is working

4. Glass should be collected and sent to factories for ____________.

A. reusing B. reducing C. refilling D. recycling

5. We ____________ morning exercise at six o’clock yesterday.

A. took B. take C. are taking D. were taking

6. My friend, Lam ____________ to school late.

A. is always going B. was always going C. goes always D. always goes

7. The Statue of Liberty ____________by French people.

A. design B. designed C. was designed D. was designing

8. Ha Long Bay is ____________ by UNESCO as a World Heritage Site.

A. studied B. recognized C. known D. seen

9. ____________ is often called “The Windy City”.

A. Hawaii B. Chicago C. New York D. San Francisco

10.She promises she ____________ study hard for the next exam.

A. won’t B. will C. is D. must

11. ____________ in Cambodia should be really known as a wonder.

A. Angkor Wat B. The Taj Mahal

C. The Hanging of Babylon D. The Statue of Zeus

12. Myschool hasn’t held a/an ____________ contest yet.

A. flower-arranging B. flowers-arranging

C. arranging-flowers D. arranging-flower

1. C
2. C
3. B
4. D
5. D
6. A
7. C
8. B
9. B
10. B
11. A
12. A

Choose the best option to complete each sentence

1. I don't know ... a birthday cake ?

A. make  B. making  C. to make  D. made

2. ... you post this letter for me, please ? - OK

A. Do  B. Are  C. Will  D. Shall

3. The man ... in the garden is my grandfather

A. works  B. working  C. worked  D. is working

4. Glass should be collected and sent to factories for ...

A. reusing  B. reducing  C. refilling  D. recycling

5. We ... morning exercise at six o' clock yesterday

A. took  B. take  C. are taking  D. were taking

6. My friend, Lam ... to school late

A. is always going  B. was always going  C. goes always  D. always goes

7. The Statue of Liberty ... by French people

A. design  B. designed  C. was designed  D. was designing

8. Ha Long Bay is ... by UNESCO as a World Heritage Site

A. studied  B. recognized  C. known  D. seen

9. ... is often called "The Windy City"

A. Hawaii  B. Chicago  C. New York  D. San Francisco

10. She promises she ... study hard for next exam

A. won't  B. will  C. is  D. must

11. ... in Cambodia should be really known as a wonder

A. Angkor Wat  B. The Taj Mahal  C. The Hanging of Babylon  D. The Statue of Zeus

12. My school hasn't held a/an ... contest yet

A. flower - arranging  B. flowers - arranging  C. arranging - flowers  D. arranging - flower