A．down B．offC．behind D．back

He looked down from the mountain to the valley（) .A beforeB beneathC beyondD behind

【B20】A．broken upB．broken offC．broken awayD．broken down

【C2】A．onB．offC．upD．down

【C17】A．called forB．called offC．called upD．called back

After youve signed the contract, it will be impossible to_____.A．back awayB．back offC．back

Weve signed an agreement and we cant______of it now.A．back downB．back offC．back upD．back o