________ the concert had begun did we realize what a splendid show it was going to be.
A、NosoonerB
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It is useful to science _______ the earth as an object in space.
Theaddressbook________theemailaddressesofyourfriendsorgroupsofcolleagues.
WeweretoldthatSuewouldbeidealforthejob,butshe________badlywhenwetalkedtoher.
It's more ________ to buy a season ticket if you travel every day.
The wealth of a country should be measured ________ the health and happiness of its people as well as the material goods it can produce.
