来自李保生的问题
Tom____inchinanoe.hecallshisparentsonceaweek.a,isstudyingb,willstudiedc,hasstudiedd,studied
Tom____inchinanoe.hecallshisparentsonceaweek.
a,isstudying
b,willstudied
c,hasstudied
d,studied


Tom____inchinanoe.hecallshisparentsonceaweek.a,isstudyingb,willstudiedc,hasstudiedd,studied
Tom____inchinanoe.hecallshisparentsonceaweek.
a,isstudying
b,willstudied
c,hasstudied
d,studied
TOM在中国念书,每周都打一通电话回家给父母.
从后半句的时态可以看出,他现在还没读完,所以,只有A合适也只有它意思符合.