---______can I keep this book?---One week.A.How many B.How often C.How long
.---What else did the teacher say? ---He advised us______ in the wetlands.
I __________computer games at home when my cousin_____________me.
Jim is ______excellent runner. He often comes _____first in the race.
----What do you want to do for vacation?------I_____my grandmother.
Although he is a little boy,_____he speaks English well.