There ______ a number of books on the bookshelf. And the number of the books ____ 50.
A. are; are B. are; is C. is; is D. is; are
He his baby every day because his wife is very busy.
A. puts on B. wears C. dresses D. is in
---_______ do you write to your e-friends? --- Almost twice a month.
A. How long B. How often C. How far D. How soon
It is really crazy ________ Peter to let his ________ son swim alone in the river.
A. for; 5 years old B. of; 5 years old
C. for; 5-years-old D. of; 5-year-old
My father has a habit of jogging ___________ the river in front of my house for an hour in the morning.
A. between B. along C. over D.through
Lisa is _________ exchange student from Britain, but she knows a lot about China.
A. a B. an C. the D. /