Bob would have helped us yesterday ,but he____ A.was busy B.is busy C.had been busy D.will be答案是a,为什么不能选c呢?

What would have happened _____ ,as far as the river bank?A Bob had walked fartherB if Bob should walk fatherC had Bob walked fatherD if Bob walked father哪个?help and explain~thank you 26.What would have happened ______ ,as far as the river bank/ a.Bob had walked farther b.if Bob should walk farther c.had Bob walked farther d.if Bob walked farther 为什么 29).What would have happened ______ ,as far as the riverbank?.if Bob has walked farther B.if Bob should walk fartherC.had Bob walked farther D.should Bob walk farther What would have happen___,as far as the river bank?5.What would have happened______,as far as the river bank?（2001上海）A.Bob had walked farther B.if Bob should walk farther C.had Bob walked farther D.if Bob walked farther为什么答案选C,希 单选：Bob would have helped us yesterday,but he _____.A.was busyB.had been busy---------------------key:A难道不该是B吗? 第一题：Bob would have helped us yesterday ,but he ( ) .A.was busy B.had been busy 参考答案是A 为什么不是B? Bob said he was going to jion our club but he did not .He___his mind.A..can not have changedB.would not have changedC.must have changedD..should not have changed 高二英语虚拟语气1.If I were to have time,I to the wheatre tomorrow evening.A.should go B.would have goneC.had gone D.were to go 2.What would have happened ,as far as the river bank?A.Bob had walked farther B.if Bob should walk fartherC.had Bo Does Bob have a socks?中文? Does Bob have a reading lamp?中文 Bob asked his mother ( ).A.where could he get his hair cut B.that she would take him to the zooC.if will they have fish fdr lunch D.when his father would be back Bob's father would like to buy a____computer for Bob.(really) would Bob like a hamburger?的肯定回答 Bob:Would you like a cigarette?Jason:No,thank you.I've given up smoking.Bob:_______ A.A.Ok.Go ahead and do itB.All right.Take care.C.Well,you don't mind if I have one,do you?D.Sorry,have another one then. 英语.would (not) have would have to would like to have 英语.would (not) have