We haven't heard from Jane for a long time.---What do you su

We haven't heard from Jane for a long time.---What do you suppose ______to her?A.was happening B.to happen C.has happened D.having happened 23.I send you $100 today,the rest _____in a year.A.follows B.followed C.to follow D.being followed
24.There are eight tips in Dr Roger's lecture on sleep,and one of them is:______to bed early unless you think it is necessary.A.doesn't go B.not to go C.not going D.don't go