19.______ they are brothers,they don't look like each other at all.A.Because B.Though C.When D.As 20.--- When did you know the news?--- I knew nothing about it _________ my friend told me.A.after B.it C.because D.until

They are walking,______ ______?( ) A.are they B.aren't they C.are there D.aren't there --______.--They are delicious. They are ______(she) A:_____ ______ the shoes?B:they' under the sofa.A:_____ ______ are they?B________ mine完成对话 A:Where are tigers from?B:They are fome _____ ______.以上补全对话. 同义句 They are hurrying to work.They are _____ to work ______ ______ ______.They are hurrying to work.They are _____ to work ______ ______ ______. These ______ my friends.—____ are English.A.are,These B.are,They C.is,It D.are,She A:What are they B:They are ______,_____,_______and _______.如何将对话补全完整 They aren't ______ books .They are yours.(they) They are enjoying themselves.改同义句They are _____ ______ ______ ______. They are learning English ______ Mr.Blake. Fish are vertebrates because they have ______. ______(their)are ____(they)books. Are they feet?no,_____ ______. ______ of the students are Young Pioneers.A.All B.Any C.They D.Them They are studying hard than any other ______.A.students B.student ( )Do you like sports yes,they are ______.A.boring B.interesting C.difficult D.happy Look at the girls.______ are my daughters.A.These B.Those C.They