“Susan, go and join your sister cleaning the yard.” “Why ______? John is sitting there doing nothing.”
26.With summer coming on, the weather gets hot _________.
25.In Switzerland, six miles west of Geneva,___________ a collection of laboratory buildings.
24.America was____________ was first called" India" by Columbus
23.To everybody's surprise, the fashionable young lady ___________ to be a thief. A.found out B.proved out C, put out D.turned out
22.Collecting stamps as a hobby___________ increasingly popular during the past fifty years.