II. Choose the word whose main stressed syllable is placed differently from that of the other in each group. 1. A. avoid B. exist C. support D. notice 2. A. spacious B. hungry C. disease D. danger 3. A. available B. environment C. electrical D. volunteer 4. A. appearance B. pollution C. personal D. opinion 5. A. wonderland B. favorite C. driverless D. expensive 6. A. harvest B. parade C. music D. pumpkin 7. A. offer B. prefer C. abroad D. arrive 8. A. famous B. joyful C. usual D. alone 9. A. exist B. avoid C. support D. notice 10. A. hungry B. disease C. spacious D. danger

Cho tam giác ACE, BD//CE (B thuộc AC, D thuộc AE ) a) Tính DE biết AB = 5cm; AC = 6cm; AD = 7,5cm b) Tính AD biết AB = 10cm; BC = 5cm; DE= 6cm Áp dụng định lí ta-lét 8 và vẽ hình ( mn ơi giúp e với)

11. A. flood B. typhoon C. groom D. balloon 12. A. hobby B. hour C. humor D. hole 13. A. dynamite B. terrify C. deny D. symbol 14. A. thunder B. earthquake C. gather D. healthy 15. A dump B. nuclear C. bulb D. plumber 16. A. new B. sew C. few D. knew 17. A. noon B. tool C. blood D. spoon 18. A. plays B. looks C. wants D. helps 19. A. decided B. played C. listened D. enjoyed 20. A. feed B. heat C. meat D. pleasure

Tìm câu tục ngữ trái nghĩa với qua cầu rút ván

giúp emmmmmmmmmmmmmmmmmmmmmmmmmmmm

B1 1. we are all certain that these old houses___ well preserved A. should be B. is C. should D. to be 2. In the future , teachers will be ___ rather than knowledge providers A. facilitate B. facility C.facilitator D. facilitators 3. Will lessons ever ___ in other places than traditional classrooms ? A. deliver B. be delivered C. learnt D. be learning 4. astronomy studies ___ and objects in it the moon and the sun A. the moon B. the universe C. the planet D. the earth B2 1.if we (not protect) ___ the environment , our green planet will be badly polluter 2.by the time i (go)___ home after school yesterday , my mother already (cook)___ dinner B3 1.__the tourists__ flock to _this island_ every summer _to enjoy_ the _beauty of_ it A B C D 2._last week__ Hung _had__ an accident _because__ his _carelessness__ A B C D 3. everymorning , i often _see__ the men , the __women__ and the cattles __which__ go to the A B C ___fields__ to work D 4. the __lastyears__ exhibition __was__ no _as good than__ this __years___ A B C D 5. a career _used to be___ ___understand__ as a single occupation __that___ this __years___ A B C D B4 1. teenagers / decisions / concerning / their lives / participate in / will / importan 2. In spite of / poor health / her / works / twelve / a day / hours / she 3. my grandfather ,/ ten years, / has been / for / retired / who / an astronaut / be / used to 4. nowadays / there / varieties of / all over the world / english / are / such as / and / british english / american english / indian english 5. you/ experienced / weightlessness / have / ever ? B5 1. our package holiday was wonderful , the price was reasonable -----> we had a................................................................ giúp mk vs ạ

A. PHONETICS I. Choose the words whose underlined part is pronounced differently from that of the others in each group. 1. A. doctor B. hospital C. pollution D. tomorrow 2. A. foot B. scooter C shoot D. food 3. A. champagne B. parachute C. cheer D. machine 4. A. traffic B. abundant C. band D. biogas 5. A. played B. decided C. listened D. enjoyed 6. A. dear B. heart C. hear D. fear 7. A. stupid B. studio C. study D. student 8. A. brother B. thick C. they D. that 9. A. cheer B. parachute C. champagne D. machine 10. A. doctor B. hospital C. pollution D. tomorrow

Giúp mình với mn ơi ok ,bài 4c và bài 5 nhé

giúp em câu 21 22 , 23 , 24 được ko ạ

Câu hỏi: Quy đồng mẫu số các phân số. Lưu ý : Toán lớp 4