In order to meet the deadline .Professor Smith along with his assistants _____the project day andnight .A .wprk on B .works at C .is working on D .are working on

In order to meet the deadline .Professor Smith along with his assistants _____the project day andnight .A .wprk on B .works at C .is working on D .are working on
In order to meet the deadline .Professor Smith along with his assistants _____the project day and
night .
A .wprk on B .works at C .is working on D .are working on

In order to meet the deadline .Professor Smith along with his assistants _____the project day andnight .A .wprk on B .works at C .is working on D .are working on
In order to meet the deadline .Professor Smith along with his assistants ___C__the project day and night .
A .wprk on B .works at C .is working on D .are working on
along with 用就远原则 因此谓语的单复数根据第一个主语来定 也就是professor smith来定
希望能够帮到楼主

D

选C， 句子主语是Professor Smith 谓语要用单数

C 主语算单数