Không lam giống tren mạng a . Lam giúp e voi a.

. Người thở bình thường và sau khi thở sâu nhiều lần rồi nhịn thở có khác biệt gì? Hãy giải thích.

1......they...meat in her meals in Vung Tau yesterday? a.Was...eat b.Were...eat c.Did...eat d.Do..put 2.We....the cap with a dolphin om it yesterday. a.wear b.wears c.weared d.wore 3.I...to Ben Thanh market last Monday. a.go b.gose c.goed d.went 4.He....up at 7 o'clock yesterday. a.get b.getted c.got d.to get 5.What time.....you....to bed last night? a.Was...go b.Were...go c.Did...go d.Dose...went 6.She....to work last weekend. a.didn't go b.doen't went c.didn't went d.doesn't go 7.Lan....her at the party 3 years ago. a.meet b.meted c.met d.meeted 8.Last summer vacation,.....her Mom.....her a new bike? a.Did...buy b.Does...buy c.Did...bought d.Do...bought 9.When...he...for work last week? a.was..leave b.were...leave c.did...leave 10.What....you...yesterday? a.was...do b.were...do c.did...do d.do...do 11.We....to learn English 3 years ago. a.begin b.began c.begun d.begined 12.They....at home yesterday. a.aren't b.isn't c.wasn't d.weren't 13.He...the shirt last week a.wear b.wears c.weared d.wore 14.We...here yesterday. a.am b.is c.was d.were 15.....you....to school yesterday? a.Was...go b.Were...go c.Did...go d.Do...went 16.I....sick last night. a.am b.is c.was d.were 17.We...in the library yesterday. a.am b.is c.was d.were 18.I....a student yesterday. a.am b.is c.was d.were 19.He....a doctor two years ago. a.am b.is c.was d.were 20.They....farmers last month. a.are b.is c.was d.were 21.Lan and Ba....nurses yesterday. a.are b.is c.was d.were 22.It....cold yesterday. a.aren't b.isn't c.wasn't d.weren't 23.She.....a pupipl last week. a.aren't b.isn't c.wasn't d.weren't 24.This hat.....new yesterday. a.aren't b.isn't c.wasn't d.weren't 25.My parents....teachers two years ago. a.aren't b.isn't c.wasn't d.weren't 26.He.....a mechanic last Monday. a.aren't b.isn't c.wasn't d.weren't 27....he an engineer yesterday.No,he... a.is/isn't b.are/aren't c.was/wasn't d.were/weren't 28.....it hot last week? a.am b.is c.was d.were 29.The windows...open last Monday. a.am b.is c.was d.were 30....you a teacher two years ago?Yes,i... a.is/isn't b.are/aren't c.were/wasn't d.was/weren't 31.Where....Nm from yesterday? a.am b.is c.was d were 32.Why...he unhappy last Tuesday? a.am b.is c.was d.were 33.Her aunt....her to see Cham Temple last year. a.taked b.took c.take d.takes 34.Tuan....a new bike yesterday. a.haved b.has c.had d.have 35.....she...a new ruler yesterday? a.didn't...buy b.doesn't...bought c.did...not buy d.does....not bought 36.We...at home at 7 pm last Monday. a.didn't return b.didn't returned c.doesn't return d.doesn't returned 37.She...fish and crab yesterday. a.doesn't eat b.doesn't eated c.didn't eat d.didn't ate 38.Lan....Ho Chi Minh city two years ago. a.didn't go b.doesn't went c.didn't went d.doesn't go 39.My parents....to Vung Tau last week. a.don't taked b.don't took c.didn't take d.didn't takes 40.We.....a lot of friends in Ha Noi. a.don't haved b.don't has c.didn't take d.didn't takes 41.Lan and Hoa...your school two years ago? a.are b.is c.was d.were 42.What....they...last week? a.do....play b.did...play c.do...played d.did...played 43.What...Hoa....on yesterday? a.did...try b.do...try c.did...tryed d.do...tryed 44.Who...to about the film on TV last Minday? a.talk b.talks c.talked d.talking 45.Where...they...on their way back last sunday? a.did...stop b.do...stop c.did...stopped d.do...stopped 46.What the student...at school two years ago? a.did...wears b.did...wear c.do...wears d.does...wear 47.Where you....the cake yesterday? a.was...put b.were...put c.did..put d.do...put 48.What time you....home for school yesterday? a.was...leave b.were...leave c.did...leave do...leave 49.What Ba...from Liz last week? a.was...receive b.were...receive c.did...receive d.do...receive

Trong 2 chất : nước và rượu, chất nào nở nhiều hơn vì nhiệt? Vì sao?

Nêu khái niệm , nguyên nhân và biểu hiện của quy luật phi địa trên trái đất

Một xí nghiệp dự định sản xuất mỗi ngày 120 sản phẩm. Khi thực hiện mỗi ngày đã sản xuất được 130 sản phẩm nên đã hoàn thành kế hoạch sớm hơn 2 ngày. Hỏi xí nghiệp sản xuất bao nhiêu sản phẩm? Giúp mình với các bạn ơi giải bài toán bằng cách lập pt ạ

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