According to Swan (2005), DO has four main uses - it can be an auxiliary verb, a generalpurpose verb, a substitute verb and also can use combined forms.
The sentences bellow can be completed correctly by:
Complete the gaps bellow.
I. Then he ____ a very strange thing.
II. ____ something!
III. I like ____ nothing.
IV. What shall we ____?
The words that complete, correctly and respectively, the gaps are:
