______ the blackboard, and you can ________ some number on it.
#59504
A
Look at; see
B
Look at; look at
C
See; look at
D
See; see
推荐题目
 Let’s ________ and ________ football on the playground. 
#56226
A
to go, to play
B
go, play
C
to go, play
D
go, to play
Nancy spent half an hour _______ playing the piano every day.
#56821
A
practice
B
practicing
C
to practicing
D
to practice