—John, there is_______Mr. Wilson on the phone for you.—I’m in bath.
More than one doctor _____ involved in the rescue that took place after the earthquake.
Some hard working students always keep a torch in their dormitories _____ there is a power failure.
_____ in charge of two classes made Mrs.Li, head of Senior Grade 3, extremely tired.
Almost every teenager will experience a period in their life _____ they aren’t content with their parents.
Little did the teacher imagine that a student good at maths _____ have failed in the exam.