--Hi, Tracy, you look tired. --I am tired. I________ the living-room all day.
#104239
A
painted
B
have been painting
C
had painted
D
have painted
推荐题目
---Each of the students working hard at their lessons ________ the book. ---- So have I.
#103463
A
is reading
B
has read
C
read
D
reads
When the old man ______ to walk back to his house, the sun itself behind the mountain.
#101758
A
started; had already hidden
B
had started ;had already hidden
C
had started; was hiding
D
was starting; hid
Every few years, the coal workers ___________ their lungs X-rayed to ensure their health.
#103745
A
are having
B
have
C
have had
D
had had
A kind of newlymade shoes, if put into the market, ________ large orders because the heels can switch from 9 to 4 centimeters.
#99460
A
meets
B
will meet
C
has met
D
met
If their marketing plans succeed，they ________ their sales by 20 percent.
#99749
A
will increase
B
have been increasing
C
have increased
D
would be increasing