The problem has __.raised 2.risen 3.arisen 4.aroused ____ simply because you didn’t follow my ins

The problem has __.raised 2.risen 3.arisen 4.aroused ____ simply because you didn’t follow my ins she has much(diffcult) (solve)the problem no one could __ failed to notice the fact that ///is a grave problem,这边是用has还是have为什么呢 We have found __ __ __ (一些解决的办法） the problem John has the same coat as Tim John's coat __ __ __ __ __ I can __(easy)work out the problem have you __(discussion)the problem with anyone? The strategy __ __（旨在）raise public awareness of the problem of alcohol abuse To our __(surprise),the__(important) of this problem has not been known fix the problem中的fix是什么意思?Why has no one bothered to fix the problem? Has the problem been solved ? Is the problem solved ? 这两句有什么区别 第二句对不对? with the problem has solved可以吗还是with the problem solved The maths problem is wery easy.They can work it out=The maths problem is __ __ for ___ to __ ___急 at last,Tim thought up a good idea to solve the problem(同义句)at last,Tim __ __ __a good idea to solve the problem.this volunteer work takes Fred several hours a week.Fred ___ several hours a week ___ this volunteer work.Miss Hill has run out of She has no problem sing the song 错在哪里? the application has encountered a problem是意思? the population problem has become more serious in developing countries. problem has occurred with the hack shield function.是什么意思?