单项选择题

Why is transition so difficult

A．Because transition requires money and time.
B．Because many manufacturers are unwilling to change their equipment.
C．Because research on new materials is very difficult.
D．Because it takes 10 years.
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单项选择题
According to the passage, the author implies that________.
A．participation in interesting activities relating to a school subject improves one' s achievement in that area
B．teachers should occasionally make home visits to parents
C．too many children are lazy and have poor work habits
D．only a small part of the school day should be set apart for drilling arithmetic
单项选择题
School should attach importance to parents' participation in their child' s education because________.
A．parents have a responsibility to help students to do their homework
B．home training is more important than school training since a child spends more time with parents
C．parents exert a subtle influence on children's character
D．a student spends more time with their parents than with their teachers
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