1.i am sorry,i ___your number,can you say it again?(母语干扰问题)

1.i am sorry,i ___your number,can you say it again?(母语干扰问题)
A.had forgotten B.have forgotten C.forgot D.forget
2."To my surprise,he can't ride a bike."he said in___.(surprise)
3.---What did he say?---He asked me___.
A.what is the young man's telephone number
B.what the young man's telephone number is
C.what the young man's telephone number was
D.what was young man's telephone number
4.Could you tell me___?He is wanted by the head teacher.
Sorry,i've no idea.But he was here just now.
A.where he was B.where is he C.where he was
5.---All the t-shirts in REAL MALL are on sale.Let's___ther and see for ourselves.
A.go down B.come down C.hurry up to D.get to