This robot is supposed to save a lot of labor, but it remains a problem if it ______.
#37091
A
is
B
saves
C
does
D
has
推荐题目
Where have you been, Ann? You on the phone just now.
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A
wanted
B
are wanted
C
had wanted
D
were wanted
．—Has your father finished his report?—Sorry，I don’t know．He ________ it this morning．
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A
was writing
B
wrote
C
has written
D
had written
---Where is your father?---He isn’t here. He __________ Yushu to help the people in trouble.
#41976
A
has gone to
B
has been to
C
went
D
is going
-This problem is very difficult. -I know,but Jack has working it out.
#38799
A
succeed in
B
succeeds in
C
succeeding in
D
succeeded in