--What is the shirt made _____? --Silk(丝绸). It’s made _________ Shanghai.
)—I have an English dictionary. _________? —I have a Chinese dictionary.
)—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.