“I didn’t take your phone.”

    A. She denied taking my phone         B. She denied to take my phone.

    C. She admitted taking my phone.        D. She promised not to take my phone.

“If I were you, I wouldn’t buy that book.”

    A. She told me to buy that book.        B. She advised me to buy that book.

              C. She advised me not to buy that book.    D. She suggested me not buying that book.

George said to Mary, “If you do your best, you’ll achieve success."

    A. George told Mary that if she does her best, she will achieve success.

    B. George told Mary that if she did her best, she would achieve success.

    C. George told Mary that if you did her best, you would achieve success.

    D. George told Mary that if she had done her best, she would have achieved success.

She said “I’m sorry, I didn’t reply to the letter.”

    A. She apologized for not replying to the letter.      

B. She apologized for didn’t reply to the letter.

    C. She apologized for not to reply to the letter        

D. She apologized for not to replying to the letter.

They said, “If Tom had studied hard, he wouldn’t have failed the exam.”

A. They said if Tom had studied hard, he wouldn’t have failed the exam.

B. They said if Tom had studied hard, he would have failed the exam.

C. They said if Tom hadn’t studied hard, he would have failed the exam.

D. They said if Tom studied hard, he wouldn’t have failed the exam.

“_______,” Peter denied. 

    A. I did not take your umbrella 

    B. I will not take your umbrella 

    C. I shouldn’t have taken your umbrella. 

    D. I mustn’t take your umbrella 

The police warned me against coming near the barrier.

    A. “Please come near the barrier,” The police said.

    B. “Don’t come near the barrier,” The police said.

    C. “I would like to come near the barrier,” The police said.

    D. “Let’s come near the barrier,” The police said.

“You must not get into the area,” the policemen said.

    A. The policemen stopped them from getting into the area.

    B. The policemen denied from getting into the area.

    C. The policemen wanted them to get into the area.

    D. The policemen suggested getting into the area.

“I am sorry. I broke the vase,” my little son said.

    A. My little son said that he was sorry and he would break the vase.

    B. My little son refused breaking the vase and said sorry.

    C. My little son threatened to break the vase.

    D. My little son admitted breaking the vase.

A passer-by _____ his car so that it was not causing an obstruction.

    A. told that the driver to move        B. wanted that the driver move

    C. told the driver to move            D. suggested the driver to move

“You cheated in the exam,” the teacher said to his students. 

         A. The teacher insisted his students on cheating in the exam. 

    B. The teacher prevented his students from cheating in the exam. 

    C. The teacher advised his students to cheat in the exam. 

    D. The teacher accused his students of cheating in the exam. 

My friend _______.  

     A. suggested going for a walk         B. suggested to us going for a walk  

     C. advised to go for a walk             D. reminded us going for a walk

John _______ him carry the package. 

     A. thanked me for helping             B. told me to thank with helping 

    C. said thanking with me to help         D. asked me to thank and help 

The group leader prevented his members _______.  

    A. from going on     B. going on         C. to go on                D. to going on  

“Are you the new manager, Daisy? Congratulation!” said Billy. 

    A. Billy looked forward to being the new manager. 

    B. Billy dreamed of being the new manager. 

    C. Billy prevented Daisy from being the new manager. 

    D. Billy congratulated Daisy on being the new manager.

The principal congratulated the school team _________ the final match.

    A. for winning        B. to win        C. that won            D. on winning

At last, the man admitted ___________my car.

    A. having destroyed    B. to have destroyed    C. that he has destroyed    D. that had destroyed

Patrick ____________ renting a caravan for our trip.

    A. decided        B. expected        C. suggested            D. advised

“Let me give you a lift to the airport, Jenny!” Dan said.

    A. Dan warned Jenny against going to the airport.

    B. Dan admitted giving Jenny a lift to the airport.

    C. Dan insisted on giving Jenny a lift to the airport.

    D. Dan suggested to give Jenny a lift to the airport.

“You broke my best teapot, Bob!” Teddy said.

    A. Teddy accused Bob of having broken his best teapot.

    B. Teddy thanked Bob of breaking his best teapot.

    C. Teddy advised Bob not to break his best teapot.

    D. Teddy admitted having broken Bob’s best teapot.

_____ the dog, he sat down to his own dinner.

A. Fed            B. Having fed        C. Feeds            D. Being fed

_____ all the housework, I went out for a walk.

    A. Having done    B. Had done        C. Being done            D. To do

_____ the lights, she got to sleep.

    A. Turned off        B. To turn off        C. Having turned off        D. To turning off

_____ the job advertisement in the paper, she wrote an application letter.

A. Having readed        B. Having read    C. Readed            D. To read

_____ the book, he looked for a publishing house to print it.

A. Having written        B. Written        C. Had written            D. to write

Có những cách nào để ghép các nguồn thành bộ. Theo em cách ghép nào làm giảm điện trở của bộ nguồn ?  Cách ghép nào làm tăng suất điện động của bộ nguồn?

Có những cách nào để ghép các nguồn thành bộ. Theo em cách ghép nào làm giảm điện trở của bộ nguồn ?  Cách ghép nào làm tăng suất điện động của bộ nguồn?

Xét tính tăng, giảm của dãy số (u_n) có số hạng tổng quát u_n = 2n - 3ⁿ 

8. If he knows (A) how to (B) use a (C) computer, he could find a good (D) job.

9. If you forgot (A) to take (B) the (C) keys, you will not get into (D) the house.

10. If it was not raining (A), we can (B) have lunch in (C) the (D) garden.

3. If Tom did his (A) housework (B), his mom wouldn’t have got (C) angry with (D) him.

4. If you didn’t keep (A) studying hard (B), you cannot pass (C) the (D) exam tomorrow.

5. I (A) will stay here (B) if you offered (C) me more (D) money.

6. Unless you drove (A) carefully, you will not (B) get the (C) driving (D) license.

7. If he hadn’t failed his examination (A), his parents will not be (B) very (C) disappointed (D).