2.They received ______ of letters about their TV programs.　　a. dozen b. dozen and dozen c score d. dozens A: dozen B: dozen and dozen C: score D: dozens

We already have ________________ pencils, but we need two _________________ pens. A: dozens of, dozen of B: dozens of, dozens C: dozen of, dozen D: dozens of, dozen

-- There are ______ such books here.[br][/br] -- I only need ______ these books on this shelf. A: eight dozens ; one dozen B: eight dozens of ; one dozen of C: eight dozen ; one dozen D: dozens of ; one dozen of

I bought three （） eggs. A: dozen B: dozens C: dozen of D: dozens of

(英译汉）Please pack the Nylon Socks a dozen to a box and 50 dozen to a wooden case.

Shortly after the accident, two__________ policemen came to the spot. A: dozen of B: dozens C: dozen D: dozens of

I want ____ pencils, please. A: two of dozen B: two dozen C: two dozens D: two dozens of

I want ________ pencils, please! A: three of dozen B: three dozen C: three dozens D: three dozens of

They are performing experiments with a dozen monkeys.

Shortly after the accident, two ______ policemen came to the spot. A: dozen of B: B. dozens C: dozen D: D. dozens of