21.Nearly a month had gone by________ she shoed some sign of yielding to his demand．
A．until
B．before
C．while
D．so that

22.I had a lot of trouble________ the car ________ this morning.
A．to get, started
B．to get, starting
C．getting, started
D．getting, starting

23.It was in________ friendly a way that he talked with us.
A．such
B．so
C．too
D．how

24.A lot of new buildings________ on both banks of the river now.
A．were built
B．builds
C．are being built
D．are building

25.The policeman stopped him when he was driving home and________ him of speeding.
A．charged
B．accused
C．blamed
D．warned

26.Among the six of us I have the________ money.
A．least
B．less
C．fewer
D．fewest

27.These heavy walls expressed man’s fear of the outer world and his need to fin________ ．
A．prevention
B．protection
C．preservation
D．preparation