Be quick, we'll fail to catch the school bus.
Don't worry. It's only seven o'clock now. We still have enough time.( )
A.andB.butC.orD.so
﹣Don't worry, Mom. The doctor said it was only the flu.
﹣_____I'll tell Dad there's nothing serious.( )
What a relief!
Congratulations!
What for?
I'm sorry to hear that.
It's not easy to change habits,_____ with strong will and self﹣control, it is possible.( )
for
or
but
so
Earth Day____in 1970 for the first time, and the Day now includes events in more than 190 countries and regions (地区).( )
celebrated
was celebrated
is celebrated
has been celebrated
Livestreaming (直播)___a new chance for traditional culture artists.( )
practices
provides
promises
protects
Sophia waited for a reply, but____came.( )
either
another
neither
none