—Why is the house in a mess?—I it for Christmas since three days ago.
#100434
A
cleaned
B
cleans
C
have cleaned
D
have been cleaning
推荐题目
I________all the cooking for my family，but recently I've been too busy to do it.
#99188
A
will do
B
do
C
am doing
D
had done
I don’t understand why they don’t have the report. It _________ to them a week ago.
#99517
A
is sent
B
was sent
C
will be sent
D
had been sent
Although medical science __________ control over several diseases,what worries us is that some of them are returning.
#99526
A
achieved
B
has achieved
C
will achieve
D
had achieved
By the end of last month, ten primary schools _________ with the help of Project Hope.
#100770
A
had set up
B
had been set up
C
was set up
D
set up
.Thirty thousand yuan as well as hundreds of tons of food ______ to the flooded area.
#103870
A
have offered
B
has offered
C
have been offered
D
has been offered