1. I'm sure there ____ a large crowd at the gate. 
　A) seems to be
　B) appears to be
　C) will be
　D) exists

2. There ____ many college students in the classroom. 
　A) seem to be
　B) seems to be
　C) exist
　D) exists

3. There ____ the Rome Empire for several centuries. 
　A) exist
　B) is existed
　C) was existed
　D) existed

4. There ____ good preparation for the meeting. 
　A) appears to be
　B) appear to be
　C) happens to be
　D) happen to be

5. There ____ a new bridge over the river now. 
　A) exist
　B) exists
　C) existed
　D) is existed