Kevin hates this question, but answers politely. We like all the cassettes to stay in the language laboratory. The machines here are special. They play the teacher's voice on Side A and record the student's voice on Side B at the same time. Well, the grammar practice drills are very useful at your level.
Some students write all their grammar in their workbooks very slowly.
They never learn to speak correctly at normal speed. Some grammar drills are very boring, but this cassette presents the language in interesting situations. Use your ears and your memory. It's best to repeat just one or two exercises every day. Record and play back your answers several times.