33. Whem we are in the classroom, which of the following sound may reach our ears first?

A.Sound from trapping the table.
B. Ring of a bell from the principals office.
C.Whisper of your seatmate seated behind the room.
D.Chirps of the bird in a nearby acacia tree.

34.why is not advisable to stay in hot and noisy places?

A.our sense of hearing may be affected
B.many people will discover our talents
C.our sense of sight may be damaged by the heat of the sun
D.both a and c ​