—Stay a bit longer，please. It's been such ________fun having you here.
—Thank you，but I've got ________early start tomorrow morning.
| A．/；the | B．a；an | C．/；an | D．the；an |
My sister ______ interested in math after ______ long talk with her last September.
| A．has become; my | B．became; mine | C．is; I | D．is; my |
He hurried to the school only _______ the campus was empty ___ it was Sunday!.
| A．find; because | B．found; because of | C．to find; because of | D．to find; because |
How he _______ get out of the prison ______ a mystery.
| A．could; is | B．can; is | C．was able to; remains | D．able to; remain |
____ the keeper ______ with a stick in hand, we escaped.
Finding; coming B．Found; come C．Finding; come D．Found; coming
You’re welcome to _______ in the Art Festival ______ in my campus next weekend!
| A．take part; holding | B．join; being held | C．participate; to be held | D．join; holding |