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I can help him ______his English.
A．with
B．at
C．on
D．in
Sheep live ________________grass．
A．in B．at C．on D．with
My parents are always strict ____ me.
A．with B．in C．on D．at
My sister’s birthday is______ May 2nd.
Sally is busy ______ her homework.
A．in
C．with
D．on