Can I join the club, Dad—You can when you ______ a bit old.

_____you disturb her with these annoying questions just when she was busy cooking dinner?— Sorry, I _____that at that time. [ ]

下列词语中，字音、字形完全正确的一项是（ ）

It’s true that whoever ____positive for H7N9 willreceive free medical treatment from our government without delay.

下列句子中，没有语病的一项是