Having a glass of water first thing in the morning helps rid your body of poisonous substances that ________ overnight.
#99243
A
were stored
B
had been stored
C
are being stored
D
have been stored
推荐题目
 Selecting a mobile phone for personal use is no easy task because technology __________ so rapidly.
#104438
A
is changing
B
has changed
C
will have changed
D
will change
In the past several weeks, many cities in Northern China        from heavy fogs and  severe cold.
#99857
A
had suffered
B
have been suffering
C
were suffered
D
suffered
---Why do you keep looking back? ---I have a feeling that we _______.
#103489
A
were followed
B
have been followed
C
are being followed
D
are following