未知题型 When you buy the spare parts for your car， try to get the _______ ones from the authorized dealer. A.genuine B.generous C.genius D.gentle

未知题型 This problem is beyond his ability and he can not ________ it. A.slip B.pack C.gain D.solve

未知题型 My hands and feet were ________ with cold as I waited for the bus. A. cliff B.still C.stiff D.stick