Mother is glad that he’s already done_______ 60% of the work in such a short time.(西安市)

We didn’t know you were in trouble at that time,_____ we would have given you a hand.

I can’t give you an answer right now. I’d like     more time to consider my decision.

It’s always difficult being in a foreign country, ___________if you can’t speak the language.

（2014年安徽省合肥市高三第三次教学质量检测）23. -- Don't you think Carl was brave to go wingsuit flying?-- Personally, I think he was ______. He shouldn’t have risked his life to do so.