—— Why? Tom, your shirt is so dirty! —— Mum, I ＿＿＿＿＿ my storeroom downstairs。
#104641
A
cleaned
B
have worked
C
was cleaning
D
have been cleaning
推荐题目
Microsoft ended support for Windows XP after April 8, which _______a major operating system for some Chinese computer users, and advised users to upgrade to Windows 8.1.
#99227
A
remained
B
remains
C
is remaining
D
is remained
Since the film “Life of Pi” was on, it _________ more and more people around the world.
#101283
A
attracted
B
had attracted
C
has attracted
D
will have attracted
They _______ on the program for almost one week before I joined them, and now we ________ it as no good results have come out so far.
#104610
A
had been working; are still working
B
had worked; were still working
C
have been working; have worked
D
have worked; are still working
A new Wanda cinema _______ here. They hope to finish it next year.
#99667
A
will be built
B
is built
C
has been built
D
is being built
Michael ______ here to see you and he ______ a note on your desk .
#104622
A
has come ; has left
B
has been ; has left
C
has come ; left
D
has been ; left