workers in the factory over two thousand.
A．The number of; is B．The number of; are
C．A number of; is D．A number of; are
You read his books, and he wants to read your books _ ___.
A．in all B．any more C．at all D．as well
They will build nature reserves _____ protect ______ birds.
A．to; in danger B．for; endangered
C．to; endangered D．for; in danger
The earthquake ____ when I ____ some cleaning.
A．starts, was doing B．started, was doing
C．was starting, was doing D．starts, were doing
My brother likes reading very much. The sentence structure is________.
A．S+V+P B．S+V C．S+V+DO D．S+V+IO+DO
The farmers were so sad ____ they lost their farms.
A．that B．because of C．but D．because
