Điền số thích hợp vào chỗ chấm
$ 400d{{m}^{2}}=....{{m}^{2}} $
A. $ 40 $ .
B. $ 401 $ .
C. $ 400 $ .
D. $ 4 $ .

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Many people find it too ………. to change their smartphones often.
A.costly
B.dangerous
C.interesting
D.smart

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The wind caused the tent to ……….
A.weaken
B.lower
C.collapse
D.sink

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Some people still believe that modern science can _____ all the world's problems.
A.charge
B.cause
C.transfer
D.solve

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
We’ll save a lot of ………. if we go there by car. It may take only 30 minutes.
A.speed
B.power
C.water
D.time

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
I wish someone would ………. an everlasting light bulb.
A.invent
B.find
C.discover
D.research

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Such a database would be extremely ………. to set up.
A.wisely
B.costly
C.friendly
D.lucky

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Man-made ………. such as polyester are easy to wash and iron.
A.lakes
B.landscapes
C.fabrics
D.chemicals

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
………. computers are good for accessing information while travelling.
A.Heavy
B.Bulky
C.Portable
D.Weightless

Chọn đáp án đúng
4256m$^2$ được đọc là:
Bốn hai năm sáu mét vuông
Bốn nghìn hai trăm năm mươi sáu mét hai
Bốn nghìn hai trăm năm mươi sáu mét vuông
A.answer3
B.
C.
D.