根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有两项多余选项。
— Can you help me?
— Sure, what's the problem?
— 1_____
— Well, how about San Francisco? We went there last year and had a great time.
— 2_____
— Well, there is Golden Gate Bridge of course, and Golden Gate Park. It's a really big park. You
can go for long walks or take a rest in the Japanese Tea Garden. It's beautiful there.
— 3_____
—There is also a place called Fisherman's Wharf. That's really popular with tourists. There are lots
of shops, cafes and restaurants. And from there you can go on a boat trip to Alcatraz. You know,
it's a small but very beautiful island.
— 4_____
— No, you can't stay on the island; there aren't any hotels. You can only go for the day. I think I've
still got a book about San Francisco. I can lend it to you.
— 5_____
A. What can you do there?
B. Oh, great! What a great place to stay in!
C. What an idea! What is the best time to go there?
D. I can't decide where to go for the holiday-any ideas?
E. Thanks a lot. San Francisco, here I come!
F. Hmm, that sounds good.
G. How can I go there?
缺失，且缺牙区两侧基牙情况良好，咬合关系正常，应选择以下哪种固定桥方案较合理()