If you want to make yourself _____, you should speak clearly and slowly.
#48958
A
understand
B
understood
C
to understand
D
understanding
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It’s your job________ the pop stars.
#50626
A
introduce
B
introducing
C
introduces
D
to introduce
________ can make people healthy.
#48684
A
Doing more exercise
B
Watching TV too much
C
Going to school without breakfast
D
Going to bed too late at night
You must stop _______. My father is sleeping. 
#48869
A
talk
B
talking
C
to talk
D
talks