It’s said that the early European playing-cards ______ for education.
#99874
A
have designed
B
were designed
C
have been designed
D
were being designed
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Without this year’s Nobel Prize in physics winner Charles Kao’s idea of fibrotic（光纤的）communications, the “modern” telephone and Internet _________impossible．
#103582
A
will be
B
were to be
C
should be
D
would be
—Larry, I will call you at 6 o’clock tomorrow morning.—Thanks, Mum. But it’s too early. I _____then.
#100423
A
am sleeping
B
am to sleep
C
will be sleeping
D
has slept
As she _____ the newspaper, Granny _____ asleep.
#104166
A
read ; was falling
B
was reading; fell
C
was reading; was falling
D
read; fell
—I phoned you at 9 this morning but got no answer.—I am sorry. I _____ the bell. I _____ in the garden.
#101559
A
didn’t have heard, must have been
B
didn’t have heard, must be
C
didn’t hear, must have been
D
didn’t hear, must be
Oh，my God! The ceiling in and the kitchen is flooded. Come quickly，Jack!
#99349
A
fell
B
had fallen
C
has fallen
D
was falling