While watching television, ________.
A. the doorbell rang B. the doorbell rings
C. we heard the doorbell ring D. we heard the doorbell rings
Are you afraid ______? This type of anxiety can deeply disturb people’s enjoyment of social relationships.
A. of making fun of B. to be made fun of
C. of being made fun of D. to make fun of
A man posted a picture of injuries to his face when he _______ some steps.
A. tripped over B. tripped out
C. fell down D. turned over
This article may be some advice about how to ______ oneself in today’s society.
A. behave B. believe
C. perform D. operate
Inside are over 500 paintings, prints, watercolors, and a _______ of other art objects.
A. sort B. kind
C. amount D. variety
Standards and rules must be set to keep order, make sure of justice and ______ individual rights, but do not contradict school policy.
A. stand for B. stand out
C. stand up for D. stand by
