I am shocked at the news that many pupils were killed in the terrible traffic accident.— So am I. Little the safety of the poor children. [ ]

下列各句中，没有语病的一句是（ ）

The work is hard to deal with. Only the most skillful workers are _____ it. [ ]

Many new workers _____ trained and in twomonths they will _____ to build a new railway.

Do you know the little boy _______is helping the old man cross the road—-No. But how nice he is!