periment shows that proper amounts of exercise, if regularly, can improve our health.

The reason _______ he was late was _______ he missed the bus.

Leave it to me! I feel much more _____ about myself and my abilities these days．

.-Have you found the information about the famous people_________ you can use for the report-Not yet. I’ll search on the Internet.

What did he want to know, Jim——-_________ I could finish writing the report.