With a lot of problems _______, the principal decided to hold a meeting to have a discussion about them

    sales of cars up by 30% last year, the traffic in Beijing has become increasingly terrible.

With his horse ____to the tree, the man had a rest in the shade.

－What made Jim’s parents so happy?－＿＿＿　the college entrance exam.

It was a pity that the great scientist died      his research unfinished.