一、单选题(本大题共15小题,共15分) 1. Spell it , please! -________.( ) A. Thank B. P-E -N, pen C. It's pen D. OK 2. It's black.It's black pen.( ) A. a;a B. a;/ C. /;a D. /;/ 3. ----What's that ________English?----It's a map.( ) A. at B. to C. of D. in 4. What's this in English ? --- It's __________.( ) A. an orange B. a orange C. orange D. the orange 5. - What's this ? - a pen. ( ) A. That's B. This is C. It D. It's