I could have helped him out, to tell the truth, I _____ too busy. A．am B．was C...
Icouldhavehelpedhimout,totellthetruth,I_____toobusy.A．amB．wasC．havebeenD．hadbeen...
I could have helped him out, to tell the truth, I _____ too busy. A．am B．was C．have been D．had been
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| B |
| 考查时态。句意：我本来能够帮助他，说实话，我太忙了。结合语境可知下文描述的是过去的状态，故用一般过去时态，选B。 |
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