Bài 2: Phân tích các đa thức sau thành nhân tử :

a. x - 2y + x² - 4y²

b. x²- 4x²y² + y² + 2xy

c. x⁶ - x⁴ + 2x³ + 2x²

d. x³ + 3x² + 3x + 1- 8y³

31. I find it hard to understand that foreigner because of his _____________.

A. voice B. sound C. accent D. volume

32. Kangaroos and _____________are the iconic animals of Australia.

A. beaver B. koala C. eagle D. cheetah

33. Coming to New Zealand, you will be surprised by its many___________ views.

A. breath-taking B. taking-breath C. breath-take D. take-breath

34.The Statue of Liberty in Upper New York Bay of America _____________the freedom.

A. presents B. shows C. symbolises D. reveals

35.Singapore is an ideal destination for worldwide visitors because of its many _____________.

A. tour attractions B. attraction tours C. attractive tours D. tourist attractions

36.Some beauty spots in this city _____________reconstructed to attract more visitors.

A. has been B. have been C. will have D. will been

37.The Louvre Museum _____________from 9 a.m. to 6 p.m. every day except Tuesday and Wednesday.

A. opens B. open C. will open D. will be open

38.If I were you, I _____________ for a new car to buy.

A. would look B. will look C. look D. looking

39.This annual festival _____________at the end of the March.

A. will hold B. will be held C. holds D. is held

40. I _____________Sydney Harbour twice, so this time I think I _____________to a different place.

A. have visited - will go B. have visited - will be going C. visited - will go D. visited - will be going