A．He couldn’t get out of his room．
B．He left his key with his roommate．
C．He couldn’t find the key to his room．
D．He helped his neighbor break the lock．
A．Clean his glasses after painting．
B．Take off his glasses before painting．
C．Press the plastic wrap on the ceiling．
D．Cover his glasses with the plastic wrap．
A．At an airport．
B．On the phone．
C．In a ticket office．
D．We don’t know．
A．3：45 flight．
B．1：30 flight．
C．5：00 flight．
D．Either 3：45 flight or 5：00 flight.