问题
选择题
Most of the problems ______, he has a tight schedule every day.
A．remaining unsettled
B．remained unsettled
C．remaining unsettling
D．remained unsettling
答案
答案：A
本题考查非谓语动词。问题the problems与unsettle之间是主谓关系，不是被动的关系，所以选动词ing形式。句意：很多问题停留着还没解决，他每天都有一个很紧张的时间表。