To keep healthy, Professor Johnson __________cycling as a regular form of exercise after he retired.

Who is ______ teacher in the white T-shirt—Oh, that is my English teacher, Peter.

How was your trip —It was ______. We had a good time.

(2014·银川一中第四次考试)When I was very young，I was terribly frightened of school，but I soon________it

g a foreign pet is dangerous,as the owner might be infected ________ the diseases brought along with theanimal