i will be honestly on next year ì you..........(love) me

chứng minh biểu thức sau luôn dương với mọi x,y,z

\(x^2+4y^2+z^2-6x-12y-2z+4xy+13\)

choose the word that best fits each of the blank spaces.

One day, two men(1).........in the woods. Suddenly, they saw a huge black bear. One man immediately (2).............down, took off his backpack, and took out his sneakers. He began (3)............off his hiking boots. The other man looked (4)........him and said:'Are you crazy? Do you think you can run (5) ............ than that bear?' 'no", replied the first man. 'But i can run faster than you.'

1.a. hiked b.were hiking c.are hiking

2.a.sits b. sitted c.sat

3.a.to take b.taking c.a &b

4.a. for b.at c.on

5.a.faster b.fastly c. fast

(đề kiểm tra học kì 1 lớp 8 môn tiếng anh)

finish each of following sentence in such a way that it means exactly the same as the sentence printed above it

1. Lan will be 14 next week

- it is Lan's..........................................................

2. While i was watching tv, he came.

- When................................................................

3. Nam wasn't strong enough to walk to school.

-because Nam wasn't .........................................

4. I must wear the uniform at school.

- I have...............................................................

5. He loves watching television.

- he is...................................................................

( can gap)

Số phần tử của tập hợp là :

(80 - 4):2+1=39 ( phần tử)

(ỦNG HỘ NHA)

460 + 85,4 = ( x + 200 ) x 4

545,4 = ( x + 200 ) x 4

545,4 : 4 = x + 200

136,35 = x + 200

136,35 - 200 = x

-63,65 = x

=987441211 nhớ phải chọn tui đấy

= 70

T I C K nha