Hello, could you help me with my reading test exam? I am going to pass my exam on the 1st of August . Thank you ))

An average child of 5 years old uses only 1500 of the 150000 " dictionary" words that a modern language contains. But this small treasury is used very intensively, by him during the years of learning, at the rate of about 1000 words an hour, or from 7000 to 15000 words each day for an active child. School quickly increases his vocabulary, but leaves him with less opportunity for using it. At 10 years, his treasury amounts to 7000 words, of which about 30 % are used actively – the reminder is seldom or never used – and in an hour he will use about 700 words. By the time he enters university, his word inventory will have grown to 20000 and on graduation to 60000, but of these only 10%-20% will be in active use.

106. The passage informs us that, in general, a 5-year old child. . .
A) can learn 1000 words in an hour
B) uses only one percent of available words
C) knows, but doesn’t use, about 150000 words
D) learns about 7000 to 15000 words each day

107) According to the passage when a child goes to school. . .
A) he uses many words, but uses a smaller percentage of them than before
B) he starts using about 7000 words daily
C) the amount of the vocabulary, he knows, and his usage of it increases considerably
D) he is able to use more than half of the words found in a standard dictionary

108) It is implied in the passage that an average university student. . .
A) can only use the half of the words he knows in everyday life
B) graduates with less than half of the vocabulary of his mother tongue
C) uses about 7000 words, though he knows almost all the vocabulary
D) spends at least fifteen hours of a day listening or speaking