I tried to call on you last week but your dog simply ____ not let me come through the gatE.

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didn't recognize；hadn't called didn't recognize；didn't call haven't recognized；didn't call recognized；had called

will have been trying have been trying will be trying had tried

will have been trying have been trying will be trying had tried

call up ring up get through go through

could would might should

should have called must have called could call would call

didn’t recognize; hadn’t called didn’t recognize; didn’t call haven’t recognized; didn’t call recognized; had called

really call did called did call do call

not be not to be to be not to not be

will have been trying have been trying will be trying had tried

didn’t recognize; hadn’t called didn’t recognize; didn’t call haven’t recognized; didn’t call can’t recognize; had called

not be not to be to be not to not be

not make not making to make not not to make

could would might should

call up call on call off call for

get through go through tell off turn off

would might would have might have

get through ring up call up go through

not be not to be to be not to not be