im sure he will be back [ ] [ safe] soon

im sure he will be back [ ] [ safe] soon ------he will enjoy the trip?A do you feel B are you sure Cmake sure of D be sure Im sure he will understand what im saying?ThanksHi But my computer cant type chinese sorry 啥意思 He's sure to go if he___free.A.is B.will be原因? He will come .I‘m not sure.A.may B.maybe C.may be D.possible John __ sure that he ____good at chemistry soon.A be ..will be B is ..would be C was..will be D was ..would be Tom,____to come tomorrow A.is sure B.makes sure C.be sure D.will be sure It is not quite___that he will be the present at the meeting.A,cretain B,right C,sure D,exact He is young,____,but experienced A,for sure B.to be sure C.make sure D.be sureHe is young,____,but experiencedA,for sure B.to be sure C.make sure D.be sure When you leave he room,make sure the door_____.When you leave he room,make sure the door_____.A.was locked B.is locked C.will be locked D.should be locked 选哪个?并请说明原因,TKS! He is not sure whether he will be to write a Book同义句,用certain 老大：哪句意思不同 A. He's sure to come B. I'm sure that he C. I'm sure of D. He's sure t哪句意思不同A. He's sure to come B. I'm sure that he will comeC. I'm sure of his coming D. He's sure that he will come I am sure David wiU be able to find the library-he hasa good of directionI am sure David wiU be able to find the library-he hasa good of direction.A.idea B.feeling C.experience D.sense I am sure David will be able to find the library-he has a pretty It isn't quite ___ that he will be present at the meeting.A.sure B.right C.certain D.formal请问是A还是C? I'm sure he will be back __.just wait a minute.A.long before B.before long C.after long D.long after be sure to let tom know the notice as soon as he 为啥选C---A.will arrive B.was arriving C.arrivesD.arrived.请详细一些, if you cousin started at 6 o'clock in the morning, i am sure he ________ be there by now.A.may B.will C.can D.must IS QUITE CERTAIN THAT HE WILL BE PRESENT AT THE MEETINGCERTAIN 可以换成SURE吗