Have you found out the case ________ ?

[　　]

There are some children ________ in the garden .

[　　]

Tom together with his family ________ gone to London already.

[　　]

________ hard to see the stars during the daytime.

[　　]

Jim asked me ________ him up at ten o'clock.

[　　]

What are you going to give our art teacher for Teachers' Day?

I' m not sure. Maybe I ________ him some flowers.

[　　]

Here' re some presents ________ you ________ our best wishes.

[　　]

They ________ for the hospital ________ it began to rain.

[　　]

A．leave, when

B．left , while

C．are leave, while

D．were leaving, when

Do you have ________ to tell us?

[　　]

“Look out! A car ________ , ”shouted Li.

[　　]