分类：教育/科学-学习帮助
问题：几道单选.1.Passengersarerequiredto__ 
1.Passengers are requir to_____seated until the plane comes to a full stop.A.keep  B.get  C.remain  D.leave2.----Believe it or not,the man on the stage is over sixty.  ----Really,but he doesn't look_______.A.this   B.it   C.that   D.like
回答：1.Passengers are required to_____seated until the plane comes to a full stop.
A.keep B.get C.remain D.leave
2.----Believe it or not,the man on the stage is over sixty.
----Really,but he doesn't look_______.
A.this B.it C.that D.like
 
问题补充：答案为C B
 1题之所以选remain 是因为后文"直到飞机停稳"表一直延续的状态＝continue to be,stay in the same condition,是系动词.后加形容词作表语，一直站着坐着：remain standing/seated.如选keep ,seated前需加being;
2题中it指上文提到的 over sixty