It is really terrible ________ me to wait for a long time ________ a rainy night.

Stella was disappointed to find her new plan ______and fell into great depression.

obile phone has become a major means of communication, _____us to keep in touch as well as to surf the Internet to keep us _____of the latest news.

This is my sister. ____ name is Lucy.

Must I clean the floor now —__________. It is too dirty.