________ walk is expected to last all day, so bring ________ packed lunch.
A．A; a B．The; /
C．The; a D．A; /
In recent years, many mainland residents have rushed to Hong Kong to buy baby milk powder due to their ________ about its quality.
A．anxiety B．curiosity
C．generosity D．attention
One hundred thousand years ago, ________ choice was simple when it came to ________ drink—there was no choice. It was water or nothing.
A．the；a B． a；不填
C．the；不填 D．a；the
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
