You can’t complain of being lonely _____you don’t make any effort to meet people[ ]

139 — How did you spend you summervocation— I went to Beijing and stay there forfortnightThe underlined part probably means _____

She is not certain about __________ she has done anything wrong.

The old man is very kind-hearted and everyone would like to him.

___ up here night after night for weeksnow. You see, I _______ to give you a surprise.