1. Complete the sentences. Use the present perfect form of the verbs in brackets.

• Richard ………… (write) a good book.
• Mary ……….. (not get) up yet.
• Walter and Pat ……….. (finish) their projects.
• The teacher …………. (not come) today.
• Hector ………….. (break) his left arm.
• The driver ……………….. (stop) at the traffic lights.
• Lucas …………….. (pass) his last exams.
• Katherine ………….. (meet) him before.
• The girls …………….. (switch) on the TV.
• Alexander ………… (have) dinner with me.