Could you please tell me how to get to the restroom？
____．I'm not sure how to get there．（ ）
A．SorryB．OKC．Of courseD．No problem
— Well done!You didn't make a single mistake.
— .（ ）
A．Good luckB．Thanks
C．Never mindD．My pleasure
—Let's go to the museum this weekend.
—_________ I have to prepare for the speech competition.（ ）
A．Yes，please.B．With pleasure.
C．Go ahead.D．What a pity!
—Are you confident about the football match against Class 11，Kunkun？
—________ I've got everything ready!（ ）
A．Of course not.B．It's hard to say.
C．Sure，I am.D．Just so﹣so.
This is the first birthday gift _________ I received.I've kept it many years.（ ）
A．whichB．thatC．whoD．what
—What did the teacher say just now？
—He asked me _________.（ ）
A．how could I work it out
B．when did I go to the library
C．why I looked unhappy then
D．who I am waiting for