用所给动词的适当形式填空
1. - ______ you ______ (do) your homework yet?
- Not yet . I ______ (do) it.
2. - ______ you ever ______ (speak) to an Englishman?
- Yes ,I ______ .
3. When did you start ______ (study) English?
4. How long have you been ______ (study) Chinese?
5. It's fun ______ (learn) another language.
6. - ______ you ______ (see) the film before?
- Yes ,I ______ (see) it last Friday.
7. ______ you ______ (decide)what you want to do after school?
8. I'll think about ______ (become) a tour guide.