By yesterday, the plane ______out of view for more than a month.
A：is
B：has been
C：was
D：had been
①渔夫见青烟全进了胆瓶。渔夫立刻拾起盖印的锡封。渔夫把瓶口封上。
____ 。
②渔夫脱了衣服。渔夫跳下水去。渔夫把网拖上岸来。
