As an old saying goes, no ___________(痛苦), no gains.
Electric lights have ____________ (取代) candles.
Mike made a ____________(定期的) visit to his parents.
The students will all have a course in _________ (古代的) history this term.
Let us ____________ (探索) the possibilities for improvement.
To my surprise, the ____________(入口) to the mine was closed.
His wife stuckto him __________ (忠诚的) through thick and thin.
There is a ___________ (凶猛的) dog to guard the house. Please knock at the door before you enter.
The south of the country was worst ____________ (影响) by the drought.
You ____________(应得) to be happy for all the good things you have done.