— What has made him unhappy recently?— __________ alone to do the house work.
.I’m thinking the job interview tomorrow and I would appreciate_________very much if you could give me some advice.
.—What do you think made hi m so excited? —_________a scholarship to Harvard, I suppose.
He is _________to staying up late and getting up late.
None of us was good at swimming, so the crossing of this dangerous river was really a_________.
Sometimes_________good knowledge of_________ first aid may mean the difference between life and death.