Exercise 1: Complete the second sentence so that it expresses the same meaning as the original one. 1. I started working for the company a year ago. I have been …………………………………… 2. It is one hundred years since the birth of D.H Lawrence, the famous novelist. D.H Lawrence ……………… 3. How long have Catherine and Henry been engaged? When………………………………? 4. I last saw him when I was a student. I haven’t…………………… 5. It is ages since Alan visited his parents. Alan hasn’t……………… giúp mình với

a)$\frac{\sqrt[]{7}+ \sqrt[]{5} }{\sqrt[]{7}- \sqrt[]{5}}$+ $\frac{\sqrt[]{7}- \sqrt[]{5} }{\sqrt[]{7}+ \sqrt[]{5}}$ b) $\frac{x}{\sqrt[]{x}-1}$- $\frac{ \sqrt[]{2x}-\sqrt[]{x} }{x-\sqrt[]{x}}$ (x>0;x khác 1)

Tìm số hữu tỉ y biết (3y-1)^10=(3y-1)^20

fill in the blank with an appropriate preposition or adverb to form a phrasal verb 1. They got ........... bus and walked to the craft village . 2. The museum has been temporarily closed ...... for reconstruction . 3. He asked her to go on a vacation with his family but she turned him .............. 4. She is used to dealing ............ all kinds of people in her job. 5. Tourists coming .................... Western countries find conical hát interesting . 6. Bat Trang Ceramic Village is facing up ................... the lack of artisans .

Cho $Ax+By+C=0$.Cho M(x,y) là điểm dừng.Tại N((1,2),(2,1)) có ánh xạ $R^{2}->R^{2}$.Tính $[f]_M^N=?$

Tìm hai số biết hiệu hai số là 5 và tổng bình phương hai số là 157. Số lớn và số bé lần lượt là .............

Giải phương trình sau: sinx.cosx - sin^2(x) = cos2x

what is your favorite food. why

tính A=3+ 3^2 + 3^4 + 3^6 + ... + 3^100

Write about city(Nha Trang city) -what kind of city is it?Industrial/ tourism/ administration/ port/ ancient -typical features of the city -services: education/ historical ruins/ downtown areas/commercial areas -how are the locals? -positive/ negative things of the city -why do you know/ do you like it? -do you want to settle down your life there?