He was doing then / she / his mother/ask/phoned/to/what/He

• Correct sentence: He asked his mother what she was doing then when he phoned.

Ann / for food. / what / Vietnamese/ wondered/people/plants/ grew

• Correct sentence: Ann wondered what plants Vietnamese people grew for food.

Peter / to ask / phoned the / were selling / shop / what / they / specialties / there.

• Correct sentence: Peter phoned the shop to ask what specialties they were selling there.

on Mars. / asked / The student/what/his professor / forms of/could/life / exist

• Correct sentence: The student asked his professor what forms of life could exist on Mars.

She/injured / last week. / her arm / in a match

• Correct sentence: She injured her arm in a match last week.