1. When she comes later today, he . . . . . the dinner.

A. cooks B. is cooking C. will be working D. has cooked

2. If the teacher were here now, we'd ask him the difference . . . . "science" and "technology".

A. among B. of C. between D. for

3. Our teacher says that new technology . . . . . many worker jobless in the future.

A. makes B. is making C. will make D. has made

4. . . . . . ethnic minority people in the village are very friendly.

A. a B. the C. an D. θ

5. The song "The road to glory days" . . . . . by Tran Lap is a very popular song.

A. compose B. composed C. composing D. to compose

6. Alexander Graham Bell was a great . . . . ., who invented the telephone.

A. developer B. conservationist C. scientist D. explorer

1. We don't have many carnivals in Vietnam; . . . . ., we have many traditional festivals.

A. nevertheless B. while C. although D. because

2. When I came, the whole family . . . . . dinner around a big dining table.

A. is having B. was having C. had D. have

3. While she was dancing, the princess . . . . . a witch.

A. was seeing B. saw C. see D. is seeing

4. The government is sending . . . . . to the flood victims.

A. touch B. aid C. accommodation D. provision

giải phương trình

\(\left|5-|x|\right|\)\(=3\)

giải phương trình

\(\dfrac{x+2}{x-2}-\dfrac{1}{x}=\dfrac{2}{x^2-2x}\)

giải phương trình

\(\dfrac{36}{x+6}\) + \(\dfrac{36}{x-6}\) = 4,5