A new kind of drug ___ ___ to cure H7N9 bird flu by the scientists and they are hopeful that they will succeed in a couple of weeks.
#100007
A
has been developed
B
is being developed
C
is developing
D
has developed
推荐题目
She hurried to the entrance at which the car _____, and looked forward to seeing her husband.
#100491
A
would arrive
B
has arrives
C
arrived
D
will arrive
Mary went to the box office at lunch time, but all the tickets __________ out.
#101058
A
would sell
B
had been sold
C
have been sold
D
was selling
Hi, Jim. _________ seen you for ages. I really _______ see you here.
#103387
A
Haven’t, don’t expect
B
Haven’t, didn’t expect
C
Hadn’t, hadn’t expected
D
Hadn’t, wasn’t expected
— How long have you known John? — Since he ______ to our class.
#101714
A
has come
B
came
C
had come
D
comes
The news came as no surprise to me. I ______ for some time that the factory was going to shut down.
#104503
A
had known
B
knew
C
have known
D
know