Có ai giúp em giải bài này được không ạ

Ex 3. Change into passive. 1. John collects money to help poor children. 2. Anna opened the window silently. 3. We have already done our homework. 4. I will ask him some questions. 5. He can bring the picture home. 6. They are feeding the pigs. 7. William is not going to repair the chair. 8. Could you ride a bike when you were 5?

cho tập hợp U = {x e N | x chia hết cho 3 } trong các số 3;5;6;0;7; số nào thuộc và số nào không thuộc tập U ?

Đề bài : Viết 1 đoạn văn kể về một kỉ niệm mà em nhớ nhất. Nhanh lên nhé . Đùng copy mạng !

Ex. 2. Suply the correct verb forms of the verbs in brackets. 1/ If he (study) ________ harder, he can pass an exam. 2/ She may be late if she (not hurry) ________. 3/ Tell him to ring me if you (see) ________ him. 4/ If you are kind to me, I (be) _______ good to you. 5/ If he (give) _______ up smoking as his doctor orders, he will be soon well again. 7/ You (not pass) ________ your driving test unless you drive more carefully. 8/ He’ll be ill if he (not stop) ________ worrying so much. 9/ We’ll go to the beach tomorrow if it ( be) ________ nice. 10/ Jane never (get) ________there on time if the train leaves soon. 11/ He (come) _______ if you waited for him. 12/ If you (ring) _______ the bell, the servant would come. 13/ If it (not, rain) _______ a lot, the rice crop wouln’t grow so well. 14/ If today (be) _______ Sunday, we wouldn’t have to work. 15/ You would have to stay in bed unless your health (improve) _______. 16/ If I (have) ________ a typewriter, I could type it myself. 17/ What (you do) ________ if you got fat ? 18/ If we meet at 9:30, we (have) _________________plenty of time.

Qua điểm O vẽ 5 đường thẳng phân biệt. Hỏi có bao nhiêu cặp góc đối đỉnh nhỏ hơn góc bẹt

Ex. 1. Supply the correct verbs forms/ tenses. 1. We (see) 3 accidents on this street in the past 3 days. 2. Is this the first time you (visit) our beautiful country? 3. At this time yesterday we (have) our new schoolyear opening online. 4. When he turned on the TV, the film (start) for 10 minutes. 5. Last night before I (go) to bed, I (prepare) for my new lessons. 6. I (not see ) Lan since we (leave) school.

Giải giúp e với ạ. Giải phương trình tìm x

ah cj giúp e vs ạ e cần gấp lắm

Tìm `x,y` nguyên thỏa mãn `x^2+x+1=y^2`