Giúp mình với ạ

Bài 3. Cho nửa đường tròn (O) đường kính AB, C ∈ (O), kẻ OH ⊥ BC, OH cắt tiếp tuyến tại B ở E. Gọi D là giao điểm của OE với (O), M là giao điểm của AD với BC.                                                                                                a) CMR: 𝐴𝐶𝐵 ̂ = 𝐴𝐵𝐸 ̂ và H là trung điểm của BC.                                        b) CMR: AD là phân giác của CAB̂ .                                                              c) CMR: EC là tiếp tuyến của (O).                                                                 d) AD cắt BE tại I, IH cắt BD tại K. CMR: KH . BI = IK . BH.

Exercise 3: Give the correct tense of the verbs

My friend Harry _________ off the ladder while he _______________ the ceiling of his room. (FALL, PAINT)

We ______________ the house in 2003. At that time it _______________ £ 150,000. (BUY, COST)

Dad _____________ interested in buying a new car. (NOT BE)

My sister ______________ for me at the airport terminal when I ____________. (WAIT, ARRIVE)

A few nights ago, I ____________ a book when suddenly I _____________ a noise outside. A few teenagers _____________ loud music. (READ, HEAR, PLAY)

The fire ________________ when the first firefighters ______________ at the scene. (STILL BURN, ARRIVE)

My brother ______________ for a job when he ______________ across an interesting ad in the newspaper. (LOOK, COME)

I _______________ someone call my name. I ______________ around and ______________ my dad standing at the back of the queue. I _______________ so surprised. (HEAR, TURN, SAW, BE)

My sister _______________ a bright summer dress when I ______________ her at the performance. (WEAR, SEE)

I _________ preparing dinner at 4.pm and I ______________ still at it when my wife ______________ home. (START, BE, COME)

Our housekeeper ______________ the vase. As she ______________ up the pieces, she _________ her middle finger. (BREAK, PICK, CUT)

We suddenly ______________ that we ______________ in the wrong direction. (REALISE, DRIVE)

She ______________ a great skier when she was young. (BE)

I ______________ an old friend in town while I _____________ the shopping. (MEET, DO)

While the children _____________ with others my husband and I _____________ to have a cup of coffee. (PLAY, DECIDE)

EXERCISES 1: The past progressive tense

I lost my keys when I ________ (walk) home. 

It was raining while we ________ (have) dinner.

I saw the department stores when I ________ (sit) on the bus.

Her phone rang while she ________ (talk) to her new boss. 

My friends ________ (drive) to work when they heard the news on the radio. 

He ________ (ride) his bicycle when the cat ran across the road. 

We couldn’t go to the beach yesterday because it ________. (rain) 

It was a lovely day. The sun was shining and the birds ________ (sing) in the trees. 

The tourist lost his camera while he  _____ (walk) around the city.

The lorry  _____  (go) very fast when it hit our car.

I _______ (walk) down the street when it began to rain.

At this time last year, I _______ (attend) an English course.

Jim ________ (stand) under the tree when he heard an explosion.

While I _____ (study) in my room, my roommates ________ (have) a party in the other room.

Mary and I _________  (dance) the house when the telephone rang.

Exercise 2: Use the words given and the past progressive

(they / take the exam?)                    

(when / he / work there?) 

(you / make dinner?) 

(they / drink coffee when you arrived?) 

(when / we / sleep?) 

(they / study last night) 

(we / talk when the accident happened) 

(he / not / exercise enough) 

(I / talk too much?) 

(it / not / snow) 

(how / they / feel?) 

(they / not / talk) 

(where / I / stay?) 

(why / he / study on a Saturday night?) 

(I / go to school when you saw me) 

(you / sleep at 6am)

17. (she / work when I called) 

(we / not / leave when you called) 

(I / not / stay in a hotel) 

(we / make too much noise?) 

Giúp mik mấy câu này vs ạ=((. Mik camon nhìuuu

Giúp mik mấy câu này vs ạ=((. Mik camon nhìuuu

Choose the word(s) CLOSEST in meaning to the underlined word(s) in each of the following sentences.

Question 19. Many language learners do not try to learn all new words they come across.

            A. study                     B. like                                    C. meet                       D. understand

Question 20. Electric cars are better for the environment. In addition, they can save money on petrol.

            A. In conclusion        B. For example                      C. Nevertheless         D. Furthermore

Choose the word(s) OPPOSITE in meaning to the underlined word(s) in each of following questions.

Question 21. I find playing sports, like badminton, an exciting way to exercise.

            A. stimulating            B. regular                               C. normal                   D. boring

Question 22. Fruit and vegetables grew in abundance on the island. The islanders even exported the surplus.

            A. large quantity       B. small quantity                   C. excess                    D. sufficiency