Elephants have good memories.They can walk for a long time and never .( )
get worried
get mad
get lost
Ann has got a letter from her best friend.It makes ___________ quite excited.
she
her
hers
herself
Listen!Our science teacher _______________the use of the robot.
explains
explained
is explaining
has explained
There are many_____________ teachers in this primary school.
woman
woman's
women
women's
The Tianwen﹣1 Probe landed on Mars___________ May 15th,2021.
at
in
to
on
Taking the train is _________good way to see the world.
a
an
the
/