27．What does the underlined word"pestering"mean in paragraph 7？
A．Inviting politely．B．Asking many times．
C．Allowing many times．D．Encouraging patiently．
28．In what order did the following events happen？
a．Manu cried for help．
b．Akhila drove Manu to school．
c．Akhila asked Manu for one more promise．
d．Akhila got special permission from the teacher．
e．Manu got himself ready for school without help．
A．a，d，c，e，b．B．d，a．c，e，b．
C．a，d，e，b，c．D．d，a，e，c，b
29．Why was there a smile on Akhila's face at last？
A．She didn't wake up Manu．
B．Manu did well in the maths test．
C．She taught Manu a lesson successfully．
D．Manu got up by himself that morning．
30．What is the best title for the passage？
A．A lazy son．B．A strict mother．
C．A quiet lesson．D．A happy family．
B
We choose food to eat every day．We might know some of the reasons for the choices，but food scientist Dr．
Brian Wansink has found that we are unaware of 90% of our food decision．Here are some"big ideas"in his research on the hidden power that drives our eating．Food for thought
In one of the studies，Dr．Wansink made volunteers eat chocolate yogurt in a dark room．He told them the yogurt was with a taste of strawberry even though they were all eating chocolate．Finally，65% of volunteers described the yogurt as having a"nice strawberry flavor!"
The research shows that our imagination has an effect on our taste．If you expect a food to