They ________ have arrived at lunchtime but their flight was delayed. [ ]

Since there is always a power failure in the town, they have candles_______ in the closet

Let’s help the old lady do some cleaning,

The news of the newly-elected president’scoming to China for a visit was ______ on the radio just now

English has a large vocabulary, hasn’t it–Yes. _____ more words and expressions and you will find it easier to read and communicate.