The old professor has such a bad memory that he looks for the watch while he is ___.
#103986
A
having it on
B
having on it
C
wearing it
D
putting it on
推荐题目
Mike didn’t notice Alice entering his room. He ____ a phone call.
#104835
A
answered
B
has answered
C
was answering
D
is answering
When you don’t know a word, you can _________ in the dictionary. 
#99231
A
look it up
B
set it up
C
give it up
D
pick it up