Find out whether there is any grammatical error in below sentence.
I have had to work / at the fountain for almost / ten hours before it could / start functioning well.

Ram was / senior to / Sam in college.

A. Ram was

B. senior to

C. Sam in college

D. No Error

It was him / who came / running / into the classroom.

A. It was him

B. who came

C. running

D. into the classroom

E. No Error

The capital of Yemen / is situating / 2190 meters above / the sea level.

A. The capital of Yemen

B. is situating

C. 2190 meters above

D. the sea level

E. No Error

The captain along with his team / are practicing very hard / for the / forth coming matches.

A. The captain along with his team

B. are practicing very hard

C. for the

D. forth coming matches

E. No Error