A The Spring Equinox（春分）starts on March 20 and ends on April 3 this year. It signals the equal（1）

length

length

（long） of the day and night time. The sun is directly above the equator（2）

on

on

the day of the Spring Equinox. After the equinox， the sun moves northwards， （3）

resulting

resulting

（result） in gradually longer day time in the Northern Hemisphere and longer night in the Southern Hemisphere.
B
My brother was my personal guardian，a friend，and a mentor. Although we were 6 years apart in age，（4）

which

which

is considered a large gap between kids，my brother and I often played together. During difficult times， my brother never（5）

failed

failed

（fail） to give me his attention and help. Whenever I had trouble with school work， he would make（6）

himself

himself

（he） available to help. When I was in 5th grade，I couldn't make sense of the music teachings of my teacher. My brother took the time to study music in order to teach me the notes and scales. I was not able to understand anything through my teacher（7）

but

but

everything made sense and the logic of music became apparent through my brother.
C China is aiming for comprehensive，systemic reforms in green transformation to achieve carbon neutrality by 2060. To achieve the goals， more effective measures（8）

will be taken

will be taken

（take） to strictly control the consumption of fossil fuels. It is also vital to establish a new power system（9）

centered

centered

（center） around new energy to enhance the carbon sink capacity of the ecosystem and popularize the idea among the public. Industrial（10）

chains

chains

（chain），such as new energy vehicles and hydrogen fuel cells， will develop rapidly， and energy-saving products will be highly promoted to the public to reduce the demand for fossil energy.