– Why does she look so tired?-- She ________ all the morning and she still hasn’t finished it.
#104525
A
cleaned
B
was cleaning
C
has been cleaning
D
has cleaned
推荐题目
23．- Why weren’t you at the meeting? - I ________ for a long distance call from my sister in America.
#103315
A
was waited
B
was waiting
C
has waited
D
have been waiting
Selecting a mobile phone for personal use is no easy task because technology ____ so rapidly.
#105002
A
is changing
B
has changed
C
will have changed
D
will change
A new company _____ here at present. They hope to finish it next month.
#99844
A
will be built
B
is built
C
is being built
D
has been built
I will stay at home and read some books if it ________ tomorrow.
#101843
A
rain
B
will rain
C
rains
D
is going to rain