3. Choose the correct preposition and fill in the gaps with the –ing form.
1) My favourite show is on TV tomorrow. I’m looking forward at/to … (see) it. 2) I’m thinking of/after … (look) for a new job. 3) I’m not used at/to … (discuss) my problems with my parents. 4) She is very good on/at … (avoid) conflicts. 5) You can’t stop him of/from … (go) there if he wants.

4. Put the verbs in the correct form (negative or positive)
1) He … (make) o many mistakes in the exam if he had not been so tired. 2) If I … (get) up earlier, I would have caught the train. 3) If I would have done the shopping yesterday if I … (be) so busy at school.