The poor traveller didn't know if they could find some food.

The poor traveller didn't know if they could find some food. They still didn`t d______ if(是否）they could go to the farthes The traveller didn't know(?)which direction to go.A.in B.at they provided the poor with some mony and food I didn’t know ________ they could pass the exam or not． she didn't know if they ______ to the park the next week. didn't they know the apponited time students,what,wanted,some,didn't,future,be,they,know,in,the, 1,some the poor who don't know poor them is（are） 2,some the They didn't know enough about food and health中的food and heal They didn't find the lecture by the scientist difficult ---- 单选They didn't find _____ the machine.