— Show me your permit, please.
—Oh, it's not in my pocket. It
| A．might fall out | B．could fall out |
| C．should have fallen out | D．must have fallen out |
--Oh, must you? Stay a longer. It's been such fun having you
--__________. I've got an early start tomorrow morning.
| A．No problem | B．All right | C．Thanks anyway | D．Never mind |
Beijing government puts more than 700 million yuan to increase its green space this year,____________ doubles the money provided last year.
| A．as | B．while | C．that | D．which |
I can guess you___________ your sweater inside out.
| A．had worn | B．wore | C．are wearing | D．were wearing |
It is only when you nearly lose someone ____________ you fully realize how much you value him.
| A．do | B．then | C．will | D．that |
--I'm going downtown.
--Come on.________.
| A．I'll give you a lift | B．You are welcome |
| C．Don't do that | D．Come with me |