.— I ‘ll ask our physics teacher to explain Newton’s Second Law of Motion, which she taught us yesterday.— That’s just _______ most of the students haven’t understood.

29. ______ you make so mluch noise, Jimmy? Your little sister is still sleeping.

I don’t know makes her afraid of having her businessdiscussed.

.She was, ______ thousands of others,interested in this kind of work.

______ relRussia has developedsteadily since Vladimir Putin was re-elected______president.