— You must _________ your son.— Oh, I see.He must make mistakes at school again.
—___________does your sister walk her dog ?— Once a day.
—Would you like to climb the hill with us tomorrow?—If it ___________,I___________.
— I bought a nice MP3 yesterday. It’s only$150.—Oh, really? I spent ___________ money than you .Mine is $120.
— Why don’t we go swimming tomorrow?—__________ .
It is ___________ cold today and there is ___________rain.