Mary began to play ________ guitar at the age of seven.A. a B.the C./
I often watch them ___ the piano .
— Will you buy the white watch or the red one ?___ I’ll take ___ .One is for my mother and the other is for my sister .
I am good at math , but his English is ___ than mine .
Speak louder ,please ! I can ___ hear you .
Mrs Brown is nice . Every day she tried to cook __ for me when I stayed in Canada .