In the following passage, some words have been deleted. Select the most appropriate option to fill in each blank.

Comprehension:
We must understand that people can process very little information presented orally. So, it is (1) ______, particularly for a teacher, to realise that the students have sometimes listened to three or four teachers (2) ______ you. So, the teacher must have props like notes, handouts and slides that will make the learning material (3) ______ alive for the students and stay that way with them. A visual aid, a little movement or colour will get the students’ attention. Another important thing to (4) ______ is that long, complicated sentences spoken fast are simply too difficult for students to understand. It is, therefore, (5) ______ to use short sentences that make sense to them instantly.