---I wonder if they ______ a party on the coming Christmas Eve.---If they______, I am sure they’ll invite us to take part.
______ she did this, all would be well.
_______ the heavy rain, many people were late for work.Because B. Because of C. As D.Since
Tom _________ in making a model plane. It was a _________.
The trip will take us ________ days.
—How ______ your holiday?—Not bad.