So difficult ____ it to live in an English-speaking country that I determined to learn English well.
The post--80s and 90s are ________, so it’s hardly surprising that boys have a close relationship with their parents.
Generally speaking, ______ according to the directions,the drug has no side effect.
--The telephone is ringing. --I _____ answer it.
He pretended to be French, but his German accent _______.
We held the graduation ceremony________ the headmaster gave a speech.