Look at the picture．Diana is _______．（　　）

A．the tallestB．the shortest

C．taller than JennyD．shorter than David

She is new here，so we know ________ about her．（　　）

A．nothingB．somethingC．anythingD．everything

Yingqi Bird Nest Library，the smallest library in the world，was opened to the public in Nanjing's Huashu Village ________ the World Reading Day this year．（　　）

A．onB．inC．atD．as

Last night the big fire in Sunshine Shopping Mall was started by the children playing with matches，________，no one was hurt．（　　）

A．LuckilyB．SuddenlyC．EasilyD．Sadly

Can you help me ________ those exercise books？I got a different number each time．（　　）

A．carryB．moveC．writeD．count