—Don’t put the waste on the ground, young man. —Oh, I’m sorry. I ______ the dustbin there.

A:hadn’t seen B:didn’t see C:can’t see D:wasn’t seeing

—Don’t put the waste on the ground, young man. —Oh, I’m sorry. I ______ the dustbin there.

A:hadn’t seen B:didn’t see C:can’t see D:wasn’t seeing

—Don’t put the waste on the ground, young man. —Oh, I’m sorry. I ______ the dustbin there.

A:hadn’t seen B:didn’t see C:can’t see D:wasn’t seeing

—Don’t put the waste on the ground, young man. —Oh, I’m sorry. I ______ the dustbin there.

A:hadn’t seen B:didn’t see C:can’t see D:wasn’t seeing

I (heard) that you really (had) a wonderful time (at) John’s birthday party, (hadn’t) you（　）

A:heard B:had C:at D:hadn’t