--Why has he been staying at home these days? --He ___________ since a month ago.
The lady always ________ in white at the party.
Peter could hardly see the words on the blackboard, ________?
-------Which boy do you want to see now? -------The _______ in the red hat.
English is taught _________ a foreign language in almost all school in China.
He asked ______ they would hold the meeting _____ it rained the next day.