英语翻译15、It is the best ------ I have seen.a.whob.whomc.thatd.

英语翻译15、It is the best ______ I have seen.a.whob.whomc.thatd.which16、My wallet is nowhere to be found.I ____ in the store.a.should have dropped itb.must drop itc.must have dropped itd.ought to have dropped it17、The young lady coming over to us _____ our English teacher; the way she walks tells us that!a.could beb.would bec.must bed.can be18、You _____do that,if you don't want to.a.won'tb.mustn'tc.shouldn'td.needn't19、 ____ girl dressed _____ black is her sister Rose．a.A; onb.The; onc.The; ind.A; in20、 A _______ boy was the only survivor in the plane crash.a.two-years oldb.two-year-oldc.two-years-oldd.two years old