A:Where was first bottle?B:It was on the water.A./ B.the C.a
Who ____ thirsty?A. am B. is C. are
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