we often ______ at 6:00.
Danny is writing postcards ____his mother.A. to B. on C. in
May I help you ___ it ?A. to write B. write C. Both A. and B
We put the letter in ______ .A. a postcard B. an envelope C. a stamp
I’m sending this letter ___ Shijiazhuang.A. in B. to C . at
------ _____ postcards do you need? ---- Six.A. How B. How many C. How much