China's Chang'e—4 landed on the Moon on Jan 3, 2019. This ______ China achieve its first soft landing on the far side of the Moon.
A.helps B.warns C.allows D.stops
—Mom, I'm old enough to wash my own clothes and ______. You can have a rest after work.
—Good boy! I am really proud of you.
A.you B.your C.yours D.yourself
Kids ________ feel better in a happy family which can provide a loving environment for them.
A.sometimes B.seldom C.never D.often
Don't be afraid of asking for help when you are in trouble, because only in this way can you make _______ step by step.
A.success B.ability C.progress D.choice
When I was in primary school, I used to play in the park _______ our school.
A.between B.behind C.through D.over
Sui Yiyuan is ________ 12-year-old boy who donated his bone marrow(骨髓) to save his mother.
A.a B.an C.the D./
