Are you going to __________ this challenge?(挑战)
We are asked to write ________article in today’s writing class.
—What do you________ the TV series“Grandpa's war of resistance against Japan”?(姥爷的抗战)—It is________. I’ve never seen such a better one before.
I don’t know if it _______ tomorrow. If it _____, we will go out for a picnic.
An old man was found ______ in his house. Luckily, he was taken to hospital in time.
The old scientist devoted most of his time __________ the space science.