Put the verbs into correct tense or form.
1. They can’t call me now because they (not know) …………....…… my new telephone number.
2. What ....... your sister (do) ……....…… now? - She (cook) ……………… dinner in the kitchen.
3. I would like (join) ……………… our school English Speaking Club.
4. Tomorrow, Nam (do) …………….. his homework, but he (not tidy) …………….... the yard.
5. ……… Hoa often (help) …………… her mother do the housework?
6. If you study English hard, you (get) …………….……..……… good marks.
7. If it (be) ………………….… fine tomorrow, we will go camping.
8. The students (visit) ……………… their old teachers next week?
9. She (not / usually have) .............……………… bread for breakfast.
10. We (not go) ……………… camping next week. We (visit) ……………… the museum. 
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