Both his parents look sad . Maybe they _________what's happened to him . A: konw B: must know C: have known D: knew

“Where's my red T-shirt?” • “It's in the washing machine.You konw I always_______________on wednesdays!” A: a.dothe washing B: b.dothe laundry C: c.both:they'rethe same

A:Would you father watch TV or go for a walk?B:The TV program is good today.（）.A:Cool.Let's go. A: What a pity! B: You konw what I mean. C: I hate to leave. D: But I need the exercise more.