Complete the dialogue with the phrases. There is one extra phrase (Hoàn thành cuộc đối thoại với các cụm từ. Có một cụm từ thừa)
Instructor: Hi! Welcome to the climbing wall. There are a few important things to say before you start. Firstly (1) watch some climbing videos on YouTube. They're useful.
Ethan: Cool. (2) to do that.
Instructor: Then, (3) you always wear a helmet when you're here.
Ethan: OK. I'll put my helmet on now.
Instructor: And keep away from other climbers below you on the wall. (4) kick their hands.
Ethan: OK, but what do you think will happen if I fall?
Instructor: Don't worry, you won't fall. We use ropes. (5) if you climb with ropes.
