单项选择题

Rockwatch is a magazine telling about things related to （）.

A．geology
B．agriculture
C．politics
D．economics

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单项选择题
New Rockwatch Rox Club members will obtain a special file when they （）.

A．do field work
B．join the club
C．buy a field notebook
D．start studying geology
单项选择题
Not until yesterday （）anything about the project that will be completed soon.

A．did I learn
B．have I learnt
C．I learnt
D．that I learnt
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