No sooner _____ themselves in their seats in the theatre _____ the curtain went up.
A. they have settled; before B
. had they settled; than
C. have they settled; when D. they had settled; than
相关试题
------Thank you for your trouble.
------Not at all. I’m ____________ pleased to help you.
| A．too much | B．too only | C．so much | D．only too |
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