Unfortunately, when I dropped in, Doctor Li for the earthquake-stricken area to help the victims, so we only had time for a few words（）

My wallet is nowhere to be found. I ______ when I was on the bus.

A．must have dropped it

B．must drop it

C．should have dropped it

D．ought to have dropped it:

I ______ my wallet when I was shopping in the store.

A．must have dropped

B．should have dropped

C．could drop

D．ought to have dropped

My wallet is nowhere to be found. I ______ when I was on the bus.

A．must drop it

B．should have dropped it

C．must have dropped it

D．had dropped it

My wallet is nowhere to be found. I ______ when I was on the bus.

A．must have dropped it

B．must drop it

C．should have dropped it

D．ought to have dropped it

听力原文：M: I'd like to make an appointment with the doctor for tomorrow.

W: Unfortunately he's completely hooked.

Q: What does the woman mean？

(16)

A．The doctor's office will be closed tomorrow.

B．The doctor's schedule is filled tomorrow.

C．The doctor has stopped seeing new patients.

D．The doctor can see the man tomorrow.

A．Xin li c,em khng bit làm bài này．

B．Xin li c,em khng bit c t này．

C．Xin li th y , em khng bit làm bài này．

D．Xin li th y , em khng bit d ch cau này．

I______my wallet when I was shopping in the store.

A．must have dropped

B．should have dropped

C．could drop

D．ought to have dropped

My watch is nowhere to be found. I ______ when I was on the bus.

A．must drop it

B．should have dropped it

C．must have dropped it

D．ought to have dropped it