diff --git a/demo/demo1/data/mrqa/convert.py b/demo/demo1/data/mrqa/convert.py
deleted file mode 100644
index 1b793a48f971d6fd8048fae5a59c3be1ed972b1a..0000000000000000000000000000000000000000
--- a/demo/demo1/data/mrqa/convert.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# coding: utf-8
-f='mrqa-combined.train.raw.json'
-import json
-a=json.load(open(f))
-a=a['data']
-writer = open('train.json','w')
-    
-for s in a:
-    p = s['paragraphs']
-    assert len(p) == 1
-    p = p[0]
-    q = {}
-    q['context'] = p['context']
-    q['qa_list'] = p['qas']
-    writer.write(json.dumps(q)+'\n')
-    
-writer.close()
-    
diff --git a/demo/demo2/data/mrqa/convert.py b/demo/demo2/data/mrqa/convert.py
deleted file mode 100644
index 1b793a48f971d6fd8048fae5a59c3be1ed972b1a..0000000000000000000000000000000000000000
--- a/demo/demo2/data/mrqa/convert.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# coding: utf-8
-f='mrqa-combined.train.raw.json'
-import json
-a=json.load(open(f))
-a=a['data']
-writer = open('train.json','w')
-    
-for s in a:
-    p = s['paragraphs']
-    assert len(p) == 1
-    p = p[0]
-    q = {}
-    q['context'] = p['context']
-    q['qa_list'] = p['qas']
-    writer.write(json.dumps(q)+'\n')
-    
-writer.close()
-    
diff --git a/demo/demo2/run.sh b/demo/demo2/run.sh
index 5d0a5a0f5468b5bdb3a067fd40a1cfbd033e201a..9e75bc77f12ebe502ff43d58924d54996e777da4 100755
--- a/demo/demo2/run.sh
+++ b/demo/demo2/run.sh
@@ -1,3 +1,3 @@
-export CUDA_VISIBLE_DEVICES=0,1
+export CUDA_VISIBLE_DEVICES=0
 python run.py