Complete the sentens: 1) i (be) busy now. i (do) my homework. 2) i can help you now. i (do) my homework. 3) look! little johnny (wash) his bike. 4) little johnny ( wash) his bike. now the bike ( be ) clean. 5) i ( learn ) the new world now. 6) i (learn) the words. i can go with you. 7) i (read) the story. i think i can answer your questions. 8) i (read) the story now. we can discuss it later
2. have done
3. is washing
4. has washed ; is
5. am learning
6. have learned
7. have read
8. am reading