Were you at home at 9 o’clock last night? —–Yes, I a shower at that time.

__________ Tim’s help, I found my pet dog in the end. I should say thanks to him.[ ]

Fifty dollars for such a T-shirt! You _______ be joking!—I’m serious．It’s made of silk.

Hello, may I speak to Mr Green, please? —Sorry. Hea meeting. Can you call him later?

How are you feeling here? — It’s quite hot. I don’t know _____ to go or stay.