Have you_____(查明)when the next plane takes off?

Have you_____(查明)when the next plane takes off? I wonder where have you_____.a.been b.gone 翻译句子：他们已经查明病因.They have already _____ _____ the cause of illness. Have you got a letter from Tom yet?（同义句转换）Have you_____ _____Tom yet? bluesky whe May I have a cup of tea?Yes,you_____.A.might B.will C.may james,you_____(do)your homework,right?yes,mon i have been busy with it for 用括号内所给词的适当形式填空what do you_____(have) for breakfast Can you_____（have）an apple every day?Yes,I____(eat)after school. -Have you_____ travelled on the train.–Yes,I have.A.never B.ever C.just D.yet we have a soccer game in our school on may 11th.ee you_____.(there的适当形式)we have a soccer game in our school on may 11th.see you_____.(there的适当形式) I hope you have a good time on the trip.(改为同义句) I hope you_____ _____ _____trip.I hope you have a good time on the trip.(改为同义句)I hope you_____ _____ _____trip. What's the most delicious food you_____ A.will eat B.are eating C.were eating D.have eaten If you_____ it, I will lend the novel to you.A. will readB. readC. have readD. want read How many times _____ you_____(visit)Nanjing?横线上填什么?是did,visit还是have,visited? what size do you_____. 说出为什么括号里填这个.1.people should always (be friendly) to each other2.we (have)already (visited)whe botanical.3.we should (reuse) the plastic bags. TILL NOW,I ALSO CANT ACCEPT IT.HAVE YOU EVER LEFT AS?NO ,I CAN'T BELIVE.LIKE THE MOMENT WHE我翻译不太懂,求指教!