Most birds find it __
__ to sleep in the trees.
| A．was safe | B．safe | C．to be safe | D．being safe |
____ 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 |
The building whose gate is _____ stands ______ to my school.
| A．open; closely | B．opened; closely | C．open; close | D．close; closely |
The bad weather made ____ difficult for the birds ______.
| A．it; migrate | B．that; migrate | C．that; immigrate | D．it; to migrate |
The horse _______ fur is red ______ to my nephew..
| A．which; belong | B．who; belong | C．whose; belongs | D．that; belongs |