The first few years in the 21st century ______ therapid rise of China as a world economic power

is addicted to novels recently.——Yes, that might _____ why he did so badly in thelast test.

e her mother was ill, she had no _____ to go tothe New Year Party

I like red. _______— I like white.

i ___as a secretary for five years in thecompany, and now she is general manager of it