Use the correct tense of the verb given - Simple Past or Past Progressive : 1. The children ______________ (TAKE) the cake when nobody ___________________ (LOOK) and ________________ (EAT) it silently. 2. First she ______________ (READ) the advertisement and then she ______________ (CALL) the company. 3. The sun ______________ (SHINE) brightly when the old man ______________ (SET) off from his cottage. 4. At eight o’clock yesterday evening the plane ______________ (FLY) from Tahiti to Los Angeles. 5. I ______________ (WAIT) for him for quite a long time but he ______________ (NOT COME). 6. Last weekend while Julie ______________ (TIDY) her bedroom, she ______________ (FIND) some of the toys she ______________ (HAVE) when she ______________ (BE) a child. 7. As she ______________ (CROSS) the street, she ______________ (SLIP) and ______________ (FALL). 8. Yesterday when I ______________ (WALK) in the park, I ______________ (LOSE) my watch. 9. The fishing boat ______________ (APPROACH) the seashore when the tornado ______________ (BEGIN). 10. I ______________ (CAN) not hear the bell because the radio ______________ (PLAY) really loudly. 11. The aeroplane ______________ (CATCH) fire just when it ______________ (TAKE) off. 12. While my mother ______________ (COOK) dinner, we ______________ (PLAY) in the garden. 13. We all ______________ (SLEEP) when some terrible noise _______________ (WAKE) us up. 14. Poor Cinderella ______________ (HAVE) to work hard while her step-sisters ______________ (HAVE) fun at the ball. 15. Professor Ward ______________ (GIVE) the lecture when the students’ riots ______________ (BEGIN). 16. When I ______________ (OPEN) the door, John ______________ (LIE) on the sofa. 17. One of my worst memories from last winter holidays was when I ______________ (RUN) out of petrol while I ______________ (DRIVE) through a snowy forest in the evening. 18. The lights ______________ (GO) out when we ______________ (DISCUSS) the plans for the following morning.

Vẽ sơ đồ thể hiện chức năng thu nhận sóng âm

Bài 2: Khoanh tròn vào đáp án đúng. 1. Are you (interested/ interesting) in classical music? 2. I always feel (exhausted/ exhausting) after long working hours. 3. The movie I saw last night was (excited/ exciting). 4. I find it (astonished/astonishing) you didn’t like sci-fi movies. 5. My sister easily gets (embarrassed/ embarrassing). 6. Tom, you look (tired/ tiring). What have you done? 7. I think all my teachers are (amazed/ amazing). I love them very much. 8. Last week, my father threw a (surprised/ surprising) party to celebrate my birthday. 9. I didn’t find the jokes at all (amused/ amusing). 10. Last year, I had a really (terrified/ terrifying) experience at the camp site. 11. I never find reading books (bored/ boring). 12. His wife looked (astounded/astouding) at the news. 13. Ann was (thrilled/ thrilling) to bits that she got the job. 14. This complicated system really makes me (confusing/confused).

Trong mặt phẳng chứa hệ trục tọa độ Oxy, cho hình bình hành ABCD có đỉnh A thuộc đường thẳng d: x= 1-t y=3+ 2t , B(0,1); C(5;3). Tính độ dài đoạn thẳng OA biết rằng đường thẳng AD đi qua điểm K(2,4)

Điền vào chỗ chấm: It's very interesting to learn .........schools in the USA.

Cần giải chi tiết câu 2 , cảm ơn

Viết hộ mình phản ứng của HCl tác dụng với Fe, Fe3O4, NaClO trong điều kiện thích hợp những phản ứng nào tạo chất khí ?

Các bạn giúp mik câu C vs. Mik cảm ơn

Làm ơn làm giúp mik từ câu 11 đến câu 16 nhé

1. Ngoài quỳ tím thì mình có thể dùng chất chỉ thị màu nào khác để nhận biết axit, bazo, muối 2. Đất chua, đất mặn, ... phù hợp với những loại cây trồng nào? 3. Phản ứng giữa baking soda và giấm ăn 4. Công thức tính khối lượng riêng 5. Các phương pháp lọc nước sạch, đặc biệt tìm hiểu cách lọc bằng than hoạt tính + sỏi + cát..