the Blacks have been concerned about their only son's safety since he___hiking alone the other day.A.went B.has gone 为什么选A不选B

never,Tianjin,to ,the Blacks,been,before,have(连词成句） The Blacks ___ in this factory since 1998 A has worked B has come C have been Dhave arrived 1.The Blacks with us for the time being.1.The Blacks with us for the time being.A.will stay B.would stay C.have been staying D.will be staying 这怎么选,怎么说 The Greens-_____supper with the Blacks this evening(have) the Blacks have been concerned about their only son's safety since he___hiking alone the other day.A.went B.has gone 为什么选A不选B The Blacks ___ for the time being.A.will stay B.have been stayingThe Blacks ___ with us for the time being.A.will stay B.have been staying C.will be staying D.would stay for the time being.Which is right?Why? 关于英语完成时的几个问题1.—How long has the film KING KONG been on?—For just several minutes.(为什么用been on这里不能begun）2.—The Blacks have gone to the Phoenix Island.—Oh,really?I have never been there before.(为什 the blacks ______ to a new flat.横线上填has moved,还是have moved? 英语七下同义句转换The Blacks have three children.变为The Biacks have ( ) family ( ） three.（ ）填空 A. to; still haven’t B. to; haven’t still C. with; still haven’t D. with; haven’t stillThough the blacks in the United states have been fighting for equal rights ____ the whites for many years, they _____ won the battle. 、The Blacks are from Paris.的翻译 The sick have been crued I have been around the 初二 英语 速度点撒、、、 请详细解答,谢谢! (19 18:59:6)对划线部分提问：There was a sports meeting last week（用NEXT WEEK改写句子）连词成句：never tianjin to the blacks been begore have I (have) this watch for three years.The Blacks (sit) at table when I came.He tried to find a seat (have) a rest In the 1950s,____ blacks didn't have equal rights,a lot of campaighs took place.A.When B.that C.which D.from which the Blacks 和the Black's的区别 He is the only some of _____.A.the Blacks B.the Blacks family C.the Black families