－Why does the river smell terrible?－Because large quantities of water______．
#100039
A
have been polluted
B
is being polluted
C
has been polluted
D
have polluted
推荐题目
“Do you know that Jack ______ a postman for about six years?” “Yes, I see.”
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A
has become
B
has turned
C
has changed
D
has been
I_______ while reading the English textbook. Luckily , my roommate woke me up in time!
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A
fell asleep
B
had fallen asleep
C
have fallen asleep
D
fall asleep
Shakespeare’s play Hamlet ______ into at least ten different films over the past years.
#100344
A
had been made
B
was made
C
has been made
D
would be made
This kind of gel pen which ______ smoothly is quite popular with students.
#100527
A
is written
B
is writing
C
wrote
D
writes