Viết lại câu :

1. he's so unhelpful that it's a waste of time asking him ( point)

\(\rightarrow\) he's so unhelpful that ...... asking him

2. My boss told me I could go home early ( permission)

\(\rightarrow\) My boss .... home early

3. I have to book the hotel, and I have to make the travel arrangements ( in addition to )

4. I'd better do this exercise now because there might not be time later ( case )

\(\rightarrow\)I'd better do this exercise now ... time later

5. I don't usually sleep after work ( in the habit )

6. It would be a good idea to have a code of advertising practice

\(\rightarrow\) The introduction ...

7. I wish I hadn't told him what we were planning to do this evening ( regret)

8. I fully intended to find out who is responsible for the graffiti ( intention )

9. Jenny didn't feel like going to the party ( mood )

10.I didn't find it any hard to translate this passage ( difficulty )

Viết lại câu

1. He told her the ghost story. He wanted to keep her at home at night ( with a view to)

2. She didn't say a word as she left the room

\(\rightarrow\) She left the room ,,,

3. Paul went to see the bank manager about getting a loan ( view )

4. It's not a habit of mine to sleep in the afternoon

\(\rightarrow\) I am ...

5. As I intended to expand my shop, I made an offer for the premises next door ( with a view to )

6. Mark is a passionate skier and he also takes part in skateboarding tournaments

\(\rightarrow\) Apart from ...

7. I support the notion to lift the trade embargo ( for )

8. You may have serious problems if you don't have any health insurance ( bound )

9. Can the conflict be only solved by force ?

\(\rightarrow\) Isn't there ...

10. Do we have to work only night shifts all the time ?

\(\rightarrow\) Is there no alternative ...

11. I couldn't do anything but suspend the driver's licence ( no option )

\(\rightarrow\) I ...

Cho tam giác ABC có I,D lần lượt là trung điểm AB,CI, điểm N thuộc cạnh BC sao cho BN=2NC. Đẳng thức nào sau đây đúng ?

A. \(\overrightarrow{AN}\) = \(\overrightarrow{DN}\)

B. \(\overrightarrow{AN}\) = 2. \(\overrightarrow{ND}\)

C. \(\overrightarrow{AN}\) = 3. \(\overrightarrow{DN}\)

D. \(\overrightarrow{AD}\) = 4. \(\overrightarrow{DN}\)

Cho \(\overrightarrow{a}\) , \(\overrightarrow{b}\) không cùng phương , \(\overrightarrow{x}\) = -2 . \(\overrightarrow{a}\) + \(\overrightarrow{b}\) . Vec-tơ cùng hướng với \(\overrightarrow{x}\) là

A. 2. \(\overrightarrow{a}\) - \(\overrightarrow{b}\)

B. - \(\overrightarrow{a}\) + \(\dfrac{1}{2}\) . \(\overrightarrow{b}\)

C. 4. \(\overrightarrow{a}\) + 2. \(\overrightarrow{b}\)

D. - \(\overrightarrow{a}\) + \(\overrightarrow{b}\)

Cho 2 vec-tơ \(\overrightarrow{a}\) và \(\overrightarrow{b}\) không cùng phương. Hai vec-tơ nào sau đây cùng phương ?

A. -3 . \(\overrightarrow{a}\) + \(\overrightarrow{b}\) và \(\dfrac{-1}{2}\) . \(\overrightarrow{a}\) + 6 . \(\overrightarrow{b}\)

B. \(\dfrac{-1}{2}\) . \(\overrightarrow{a}\) - \(\overrightarrow{b}\) và 2 . \(\overrightarrow{a}\) + \(\overrightarrow{b}\)

C. \(\dfrac{1}{2}\) . \(\overrightarrow{a}\) - \(\overrightarrow{b}\) và \(\dfrac{-1}{2}\) . \(\overrightarrow{a}\) + \(\overrightarrow{b}\)

D. \(\dfrac{1}{2}\) . \(\overrightarrow{a}\) + \(\overrightarrow{b}\) và \(\overrightarrow{a}\) - 2 . \(\overrightarrow{b}\)

Cho 2 tam giác ABC và A'B'C' lần lượt có trọng tâm là G và G'. Đẳng thức nào sau đây sai ?

A. 3. \(\overrightarrow{GG'}\) = \(\overrightarrow{AA'}\) + \(\overrightarrow{BB'}\) + \(\overrightarrow{CC'}\)

B. 3. \(\overrightarrow{GG'}\) = \(\overrightarrow{AB'}\) + \(\overrightarrow{BC'}\) + \(\overrightarrow{CA'}\)

C. 3. \(\overrightarrow{GG'}\) = \(\overrightarrow{AC'}\) + \(\overrightarrow{BA'}\) + \(\overrightarrow{CB'}\)

D. 3. \(\overrightarrow{GG'}\) = \(\overrightarrow{A'A}\) + \(\overrightarrow{B'B}\) + \(\overrightarrow{C'C}\)

Phát biểu nào là sai ?

A. Nếu \(\overrightarrow{AB}\) = \(\overrightarrow{AC}\) thì \(\left|\overrightarrow{AB}\right|\) = \(\left|\overrightarrow{AC}\right|\)

B. \(\overrightarrow{AB}\) = \(\overrightarrow{CD}\) thì A,B,C,D thẳng hàng

C. Nếu 3. \(\overrightarrow{AB}\) + 7 . \(\overrightarrow{AC}\) = \(\overrightarrow{0}\) thì A,B,C thẳng hàng

D. \(\overrightarrow{AB}\) - \(\overrightarrow{CD}\) = \(\overrightarrow{DC}\) - \(\overrightarrow{BA}\)