Professor Smith,along with his assistants,——on the project day and night to meet the deadlineA work B working C is working D are working为什么不能选B呢,可以表示主动关系呀

翻译See Professor Smith. I find it difficult to learn English well,Professor Smith professor mr smith has been a professor since 1994 保持原句意思：保持原句意思：mr smith has （ ）（ ）a professor for about ten years 翻译My letter to Professor Smith must have been miscarried ,for he never received it. The man seen by us yesterday is Professor Smith. 句型转换 19.Professor Smith is____most interesting as a lecturer.A.a B.the C.some D./ Professor Smith’s lectures__________ the subject thoroughly.covered ranged det extended 选哪个呢, 单选题 1.– The lecture given by professor Smith was r速回哈 翻译 Pro.Smith was attached to the medical college as a guest professor for two years. 8.Professor Smith and Professor Brown will ______ in giving the class lectures.A.alter B.change C.decorate D.direct We Professor Smith the day before yesterday to celebrate his birthday.We _______ Professor Smith the day before yesterday to celebrate his birthday.A.called forB.called onC.called outD.called up 为什么呢? This is professor Smith,_____ i think has something interesting to tell you.a.who b.whomThis is professor Smith,_____ i think has something interesting to tell you.a.who b.whom the professor—— she sent her friend is mr.smith who works in a famous universitythe professor for whom she sent her friend is mr.smith who works in a famous university这句话什么意思? Professor Smith,some students want to have a talk with you.._____they wait here or outside?Professor Smith,some students want to have a talk with you._____they wait here or outside?A.ShallB.WillC.WouldD.Must 译Professor Smith is always very sensitive to the reaction of the audience when he gives lectures. ___to know Professor smith.A.he said B.he is said C.i said D.it says请说出理由 Professor Smith translated not only from the French but also,on occasion,from the Polish.求翻译