题目：
语法：
1. 电影已经开始十分钟了。
The film for ten minutes.
2. 昨天的会上问了很多问题。
Many questions at yesterday's meeting.
3. 如果我是你，我会按时到达的。
If I you,I would arrive there on time.
答案：
1. has been on 2. were asked 3. were
语法：
1. 电影已经开始十分钟了。
The film for ten minutes.
2. 昨天的会上问了很多问题。
Many questions at yesterday's meeting.
3. 如果我是你，我会按时到达的。
If I you,I would arrive there on time.
1. has been on 2. were asked 3. were
缺失，余留牙正常，右侧牙槽嵴丰满，左侧牙槽嵴低平，口底和前庭沟浅
的卡环设计最好采用（）.