What ___ Tom ______? He’s writing a letter in the study.A.is, going to do B. is, doing C. will, do
与tenth相邻的数字是哪一个? A.nineth B.thirteen C.seventh
小写字母占三格的是下面哪一个字母? A.f B.h C.k
There ______ no treest. A.were B.has C.was
Ann didn’t______a friend yesterday. A.visited B.visit C.visiting
What______you do last night? A.did B.does C.are