I don’t know how ____ to my teacher to ask for three ____ sick leave

I don't know how his parents put up his behaviors.()

A.turned down

B.control

C.controlled

D.choose

I don't know(). I just arrived here two minutes ago.

A. what's going on

B. how is going on

C. who is going on

A.What a pleasure

B.I don’t know

C.Thanks a lot

D.I'm serious

A．what to answer

B．how to answer

C．to answer what

D．to answer how

- I don't know how to thank you enough.

-_________.

A.No thanks

B.Thank you, too

C.Never mind

D.It's nothing

A.keep

B.carry

C.hold

D.finish

A.affect

B.effect

C.effective

D.efficient

A.You’re welcome

B.Just so-so

C.I don’t know

D.I don’t like it at all

A.spend

B.pay

C.cost

D.worth