Fill in the gaps with since, until, while, before, hardly...when, as soon as, whenor as long as. 2.Sharon waited in the car...................................Sam was filling the petrol tank. 3.I had......................finished my dinner...............my friend knocked at the door. 4.I have to do my homework...........................I can go out. 5.You can keep this book....................................................you like. 6.Jack has been friends with Seb..................................they were at school together. 7.She fell asleep...............................she closed her eyes. 8.I can’t pay the bills..................................my boss gives me my wages.

cho 20,1 gam hỗn hợp 2 kim loại kẽm và đồng vào đ axitsunfuric dư thu được 4,48 lít khí hidro ở đktc a) viết pthh b) tính khối lượng chất rắn còn lại sau phản ứng giúp mk vs

Giải hộ mình câu 1 thôi nha, cảm ơn các bạn

nêu tác dụng phân bón trong trồng trọt

Những nguyên nhân nào đã kìm hãm sự phát triển kinh tế - xã hội của Châu Phi ?

Đặt 2 câu văn . câu 1 sử dụng cụm DT , câu 2 sử dụng cụm DT và cụm ĐT

your pen-friend who lives in a foreign country is having some stress because of studying.write an email (100-120 words ) to him / her to share and give hime some advice You should base on some suggestions below: - tell him/her how sympathetic you are with his/her problems - ask for more details of the problems if necessary in order to give suitable advice - give him/her some advice Giúp e với ạ :(( mai e thi r

Trình bày đặc điểm dân cư Châu Phi. Trình bày sự phân bố dân cư và đô thị Châu Phi và giải thích và nguyên nhân của sự phân bố đó.

REWRITE THE SENTECES 1.We postponed the picnic because the weather was bad -> The weather .......... 2.Because the film was boring,we felt sleepy ->The film ........ 3.I can't go out because it is raining ->It ........ 4.I'm sorry I can't drive ->I wish ........ 5.''Do you like sport. Ba?'' ->Hoa asked ....... 6.''Are Tam and Ba late for class?'' ->Tuan asked Nam .......... 7.She said ''I don't buy this book'' ->She said that ........... 8.Phong said ''My parents are very proud of my good marks'' ->Phong said ............ 9.''What are your hobbies, Lan? ->The teacher asked .............. 10.''What kind of book do you read, boy?'' ->The librarian asked ......... 11.You can get good grades by studying hard ->If you ........... 12.''I must go now" ->The father said ........... 13."Why do you com here late?" ->She asked me ........... 14."I will go to China next week" ->She said .............. 15."Do this test again please" ->She asked me .............. (GIÚP MIK VS Ạ , HỨA VOTE 5*) 🙆

tìm x biết lx+2l+l3x-1l+lx-1l=3 help me! cần gấp