What the doctor really doubts is ______ my mother will recover from the serious disease soon.

(2013·浙江联考)________ made our school proud was ________ more than 60% of the students were admitted to key universities in 2013.

You are saying that he is dishonest, and this is _____ I disagree.

---Tell me something about your adventure in the rainforest, please.---We lost our way in the forest and ___ made matters worse was ___ night began to fall.

_____ I cannot understand is _____ she wants to resign her present job.