______opened the book when I heard steps outside the room.
A. I hardly
B. Hardly I had
C. Hardly had I
D. Hardly did I
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Scarcely______to sleep when the telephone rang once more.
A. had I gone
B. I had gone
C. did I go
D. I went
It was not until 1969______the American astronaut succeeded in landing on the moon.
A. which
B. then
C. when
D. that
Hardly had the sun started to shine______it was clouded over again.
A. then
B. when
C. than
D. so
Hardly had the play started______a power cut.
A. when there was
B. when was there
C. than there was
D. than was there