Nothing can stop the Sandstorm ___________ more and more trees are planted．
A．unless B．if C．when D．while
My mother was angry with me because I____________ last night .
A. am seen to play computer games
B. was seen to play computer games
C. was seen play computer games
D. am seen play computer games
China ________ the Great Wall in the world.
A. is knew for B. is famous as
C. is known for D. is known to
_____________speak ___________ in _______________.
A. Germen, German, Germany B. Germans, Germany, German
C. Germans, German, Germany D. Germen, Germany, German
There are many tall buildings on ____ sides of the street .
A. each B. every C. both D. either
I like the dumplings made ________ my mother best.
A. in B. from C. by D. of
