=>
0. an (an American, a/an + N số ít, an đứng trước nguyên âm)
1. was (thì QKTD, S was/were Ving)
2. No (there was no + N, no: không, không có)
3. over (fall over: ngã, ngã nhào
4. first (the first + N: đầu tiên)
5. played (played the piano: chơi piano)
6. sometimes (sometimes: thỉnh thoảng)
7. hear (it was/is very adj for sb to V)
8. in (made films in color ~ làm phim màu)
9. show (are -> thì HTĐ, S Vs/es)
10. at (at home: ở nhà)