several days has passed ___the air crash happened.填什么sinceafter as 要翻译

In several days,my tree has two _____. The rain has lasted several days 这句中has lasted有问题吗? Has Jim arrived yet Yes ,he has ___there for several days .填been还是gone为什么 several days has passed ___the air crash happened.填什么sinceafter as 要翻译 _____________ I haven't seen him for several days?-He has gone to English the job has been advertised for several days,but so far no one have__to the advertisement Tom is ill in hospital,He__a cold for several days.A,is B,catchC,has caught D,has had. “几天”的英语是several days,还是for several days? for several days改成since Mr Baker___here to attend a meeting for several days.A.has come B.has arrived C.has got D.has been ( A )15.Jenny says that she a bad cold for several days.A.has had B.had had C.has caught D.had caught We haven't seen Jim for several days.What do you think has happened to him 为什么是has happened而不是will happen Bettly ( ) home for several days,which made her parents very worriedA.has left B.had been away from C.has been away from D.had left — Has he seen this film?” — Yes.He ______ it several days ago.”a、saw b、has seen c、had seen several days ago与什么时态连用 He has failed several times . in several following days=in the following days吗? several days=?several days=quite a few days还是=one day or two days