问题补充:
the blackboard, and you can some number on it.
A. Look at; see
B. Look at; look at
C. See; look at
D. See; see
答案:
(答案→)A. Look at; see
B. Look at; look at
C. See; look at
D. See; see
解析:本题主要考查的是look at sth,表示看···,强调看的过程,而see表示看见的意思,表示看的结果。故选答案为A