如图，已知：∠A=∠F，∠C=∠D，求证：BD∥EC，下面是不完整的说明过程，请将过程及其依据补充完整．

证明：∵∠A=∠F（已知）

∴AC∥　____，____

∴∠D=∠1____

又∵∠C=∠D（已知）

∴∠1=____  ____

∴BD∥CE     ____

August 14, 2002
■The biggest shopping center KRF will open on August 18. Everyone with Today’s newspaper will get a small gift. You are welcome.
Address: No. 6 Bridge Street
■English Newspaper, is looking for good English speakers as editors. He should study news in college. He will get $8,000 a year. Please send you application form(求职表) in 10 days.
Tel: 3898766 Address: No 5 Longway Street Email: englishnewspaper@yahoo.com
■Traditional Chinese doctor treatment. RMB 200/hourI’ll go to your home.
Mobile: 137629390
■New York VS Chinese Dragon Team
Time: 7 PM Sunday, August 17    Place: Star Stadium
Price: RMB 300, RMB 280, RMB 180, RMB 80,