—Why do you look worried?—Fred left the company half an hour ago. His work ________ unfinished since.
#104729
A
left
B
was left
C
has left
D
has been left
推荐题目
--- How many concerts ____ up to now?--- About 25. Last night we ____ our biggest one.
#101391
A
did you play, have had
B
have you played, had
C
had you played, have had
D
do you play, have had
The person ________ the murder and he is ________ to be sentenced .
#103120
A
is involved with ; possibly
B
is involved in ; likely
C
is involved in ; probable
D
involves ; likely
--Growing population resulted in growing rubbish. --There is possibility that rubbish ________the major threat to human beings.
#100097
A
becomes
B
is becoming
C
became
D
would become
--- A high-tech exhibition in the National Museum.--- Really? What about visiting it now? .
#103033
A
will be held
B
is being held
C
is to be held
D
has been held
John and I _____ friends for eight years. We first got to know each other at a Christmas party. But we _____ each other a couple of times before that.
#104392
A
had been; have seen
B
have been; have seen
C
had been; had seen
D
have been; had seen