There is a good site on the internet for various music
theory drills. A link to its drills is found at
the bottom of this page. Perhaps you already have it bookmarked.
We are merely visiting the site
for the practice drills.
When you go to the site, you will find a "Settings" button
for setting up the drill to meet your present needs. Following
Lesson 6, I recommend you use the following settings:
Identify Intervals on Staff
Any Starting Note
Any Type of Interval
Ascending and Descending Intervals
Check all intervals (probably the default)
Identify
Interval Drill