I like French best. I think learning foreign language is __________.
)—Grace, come and have a hamburger. —No, thanks. I don’t want to be ________.
)Come and have a look at these bags in red. We sell them _____ very good prices.
)—Are your __________ workers (工人)? —No,.
—________ is the math book? —It’s in the bookcase.
)—Is this girl your sister? —_________.