Over the past few months,Chinese COVID vaccines (疫苗) ________ in many other countries.
A.have arrivedB.arrived
C.will arriveD.had arrived
Spending time with families _______ the happiest thing.( )
are
is
be
I _______ Ding Talk _______ Tencent Meeting, what about you?( )
prefer; to
would rather;than
like;than
No one can tell when they.
When they _______, I'll let you know at once.( )
return; will arrive
will return;reach
will return;arrive
It has been two months since my father _______ for Italy.( )
was left
left
leaves
I'm sorry, mom. I made a mistake in the exam.
_______.Be careful next time.( )
You'd better not.
It's too terrible.
It doesn't matter.