---Li hasn’t passed the driving test, has he? --- , though he tried his best.
This is ruler . ruler is yellow .
“中国中央电视台”的英文缩写是:____________.
当别人夸你英语说的好时,你应说:
当你称呼李老师(男)时,应如何称呼?________.
-My mother is ill. -________