Complete the sentences with Gerund or Infinitive:
1) Is ... (to read) your hobby?
2) Nick refused... (to do) this project.
3) She prefers .... (to travel) to .... (to read). 4) We didn't expect ... ( to see) Mark here. 5) I look forward to ... (to hear) from you. 6) He has alredy started ... (to work) hard at his English.​