— Are the two boys in this photo_______ volleyball?— No, they aren’t. They are_______ tennis.
Sorry, I _______ to help you at nine. I was busy at that time.
His sister _______ from home for a long time.
To improve his riding skills, he spends _______ an hour a day practicing riding.
Jim said he _______ dinner. He was quite full.
Is _______ hard for you to finish the work on time?