Liu Yang is ________ first woman astronaut in China who reached ________ space.
A．不填；the B．the；不填
C．the；the D．a；a
According to ________ People's Daily article, 40% of the lakes in Jiangsu have dried up in ________ past 30 years.
A．the；a B．不填；the
C．a；the D．不填；a
The actress received an award for her ________ to charity work.
A．addiction B．devotion
C．allowance D．application
We need an effective strategy to help children living in ________ poverty to have the opportunity to receive ________ good education.
A．/；a B．a；/
C．/；the D．the；a
—What does PM2.5 mean?
—It's a professional ________ indicating the condition of air pollution.
A．term B．item
C．number D．mark
Some students think they enjoy reading just out of interest, but others argue that a better score is their main ________.
A．recognition B．attraction
C．occupation D．motivation
