Answer:This is a free form answer!
Explanation:You are being asked to fill in rhythms that last for the four beats of the bar in the first exercise so could be
quaver quaver quaver quaver (1/4 notes)
semi-quaver semi-quaver quaver quaver quaver (1/8th and 1/4 notes)
quaver quaver quaver semi-quaver semi-quaver
quaver semi-quaver semi-quaver quaver quaver
etc
How many ways can you fit these in the bar as long as it adds up to 4 measures and that's not even using quicker notes like 1/16, 1/32
Sorry its a bit hard to show without drawing and I can't do that in the explanation!
