如图所示，质量为m的木块，从半径为r的竖直圆轨道上的A点匀速滑向B点，则在这个过程中
"Look!An old man is lying on the road．""His leg is badly hurt．Let's call_____．"（ ）
118
119
120
There is a______in my neighborhood and I often go there to see tigers．（ ）
zoo
bank
school
This is the best book I have ever read．I like it very much．（ ）
which
that
who
when
It's nice to see you again．We each other since 2016．（ ）
won't see
haven't seen
don't see
didn't see
There some students on the playground．（ ）
is
have
has
are
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