— Jenny, why not go for ________ picnic this Saturday?
— Sounds great.
a
an
the
"Do you know ________ the school library closes, Susan?"
"Ten o'clock at night."( )
when
why
who
The doctor looks tired and sleepy ________ he stayed up late to look after his patients yesterday.( )
because
if
unless
I'm going to choose some online courses with a friend of ________ to improve our English.( )
me
my
mine
"Excuse me, could you tell me where I can buy a guidebook?"
"Sorry, I'm new here. You ________ ask the policeman over there."( )
shall
can
must
"Meatout Day" is ________ March 20th. Many people in the world don't eat any meat that day.( )
at
in
on