Become-became-become-becoming
work -worked-worked-working
sit-sat-sat-sitting
play-played-played -playing
travel -traveled -traveled- travelling
die-died-died-during
get-got-got-getting
take-took-taken-taking
II. 1.Does your friend walk...?
2. wears 3. I am studying 4. plays 5. is talking 6. is watching 7. doesn't often do 8. is having
III 1. did he go 2. were you doing 3. went 4. were playing 5. bought 6. didn't watch 7. Did he get up 8. had
IV. 1. has painted 2. felt, went 3. met 4. have just given 5. has already got 6. Have you read 7. I didn't see