21. The young emperor was to take office though the power of the country was still in ______ control of the former emperor.
A．an；the B．不填；a C．the；不填 D．不填；the
22. He is such a lazy man nobody wants to work with, ______ is his brother.
A．as; as B．that; as C．as; which D．whom; so
23. It seems that living green is ________ easy and affordable. A small step marks a big difference.
A. fortunately B. nearly C. surprisingly D. hardly
