When will the 70th anniversary ceremony for our school ________? All the students and teachers are waiting for it.— Well, in my opinion, at 9 am.[ ]

_________ is my friend. _________ name is Tom..

I’m sorry I got caught in the traffic；_________, I could have been here sooner

uite impossible that it will raintomorrow But if it _______, I would still go to the park

The earth will become more and more beautiful if everyone their best to protect the environment.