My grandparents wrote letters to keep in touch with others_________ they were young.
A. when B. since C. after D. before
Sarah _________many places of interest in Beijing already.
A. visited B. has visited C. will visit D. visits
Bob dislikes coffee, so he almost _________ drinks it.
A. often B. always C. never D. ever
---_______do you brush your teeth?
---Twice or more a day.
A. How soon B. How far C. How long D. How often
Luke's mother will be _____him if he wins the reading competition.
A. proud of B. tired of C. worried about D. strict with
He ______look at the stars every night, but now he does not.
A. had better B. used to C. ought to D. had to
