–It’sdangeroustoswimhere.Lookatthesign.     --Oh,I     ...

問題詳情：

–It’s dangerous to swim here. Look at the sign.

      --Oh, I       it. Thank you.

      A. didn’t notice  B. won’t notice  C. hadn’t noticed  D. don’t notice

【回答】

A

知識點：動詞時態

題型：選擇題