Being more realistic,the elderly have learned to focus on things that make them happy and let go of ________ that don't.
They stayed with me for three weeks ,______ they drank all the wine I had.
It is reported that many a new house ______ at present in the disaster area.
------ I don’t think he is fit for the job, ______? ------Why do you think so ?
______ is of great importance now , my teacher often reminds me ,is study.
Although he was in poor health , Robert succeeded ______ other more famous engineers failed.