The scientist __________ the experiment for half a year, but he _______ yet.
#102041
A
made; didn’t succeed
B
made; hasn’t succeeded
C
was making; didn’t succeed
D
has been making; hasn’t succeeded
推荐题目
If you _________ reading that book, take it back to the library.
#100473
A
have finished
B
will finish
C
finished
D
are finishing
1.Months ago we sailed ten thousand miles across this open sea， which ____ the Pacific， and we met no storms.、
#105012
A
was called
B
is called
C
had been called
D
has been called
They say in many western countries a large number of beef cattle ________.
#103688
A
are raised
B
is raised
C
is risen
D
rise
----I thought I asked you to fix the radio.----Oh, I am sorry. I ______ it right away.
#99945
A
am to do
B
will do
C
was about to do
D
am going to do
He _________ to go through the hard times and finally became a famous artist.
#99293
A
succeeded
B
managed
C
tried
D
enabled