Вставьте частицу - to где необходимо 1)You needn't__do this washing up 2)Why not__take a holiday? 3)Don't let the children__annoy

1) You needn\'t do this washing up. 2) Why not take a holiday? 3) Don\'t let the children annoy you. 4) He refused to help me. 5) He helped me to carry the box. 6) It may rain tomorrow. 7) His plan was to keep the affair secret. 8) You ought to come earlier. 9) My friend\'s jokes made me laugh.