________ hard one may work, one cannot master a foreign language in a month or two.

Look at the black clouds. I think it_______soon.

By the end of next month she _______ the small village for more than ten years

Some patients are_________to penicillin, so there is a test beforeinjection. [ ]

古人行文时，为了把对象写得更具体可感，常不直说某人或某事物的名称，而是借和它密切相关的名称去代替。对下面句中加横线词所代替的内容，解说不正确的一项是（ ）