________ with the size of the whole earth. the biggest ocean does not seem big at all.

[　　]

You should try to get a good night's sleep ________ much work you have to do.

[　　]

________ was said here today must be kept secret.

[　　]

The ice isn't hard enough ________.

[　　]

________ is likely to come this afternoon.

[　　]

________ is possible that he will come this afternoon.

[　　]

Computers ________ information.

[　　]

－Do you remember ________ he came?

－Yes, I do. He came by car.

[　　]

________ is needed is a supply of food.

[　　]

________ your composition carefully, some spelling mistakes can be avoided.

[　　]