There are always ____interesting stories in the series that ___ many people watch them.
The park ______we visited yesterday is an excellent one .
I don’t know when my father ______back , but I’ll tell you when he ______back.
There is________ milk in the bottle. Let’s go and buy some.
______Which bag do you prefer , the green one or the pink one ? ______ .I like a light blue one .
There are________ flowers in the square during the National Day.