I _____ my pen at home. Can I use your pen, please

Could you tell me his telephone number?—— _____the phone book and find it out yourself.

We all ____ to punishing a whole group for oneperson’s fault.

We are confident that the environment________by our further efforts to reduce pollution(2013·辽宁，30)

th Academy Award Ceremony was held in Dolby Theatre ______ seats an audience of approximately 3,400.