1. Let's speak English.
Let's change/switch (over) to English
Now we can use English again.
Let me tell you this in Chinese.
Now I will change /switch back to Spanish/...
The next part of the lesson will be Spanish/......
Now,it's English-only time.
2. Right everyone.
OK/ all right ,everybody
Quiet now please
Stop working now, please and pay attention
3.Let's move on
On we go.
Now, we are going to do something else.
Let's turn to something a little more/less serious.
4. Now, we will do another exercise.
Now we shall do something group work.
Now let's have a look at exercise 1B
Now, I have some music for you.
Sayumporn 065 3EN