13. Mary helped me ________ (repair) this fan and _______ (clean) the house. 14. We offer ________ (make) a plan. 15. We required them ________ (be) on time. 16. Kim wouldnt recommend him _______ (go) here alone. 17. Before ________ (go) to bed, my mother turned off the lights. 18. Minh is interested in ________ (listen) to music before _____ (go) to bed.