______ to their own work, most of the parents spend little time with their children.
| A． Devoting | B． To be devoted | C． Having devoted | D． Devoted |
Do you often help your father ___ the farm work during the summer vacation?
| A．for | B．on | C．in | D．with |
They sometimes go on working ___ the light of the moon.
| A．on | B．under | C．by | D．for |
He has never been to France, ___ Harry.
| A．neither has | B．nor did | C．so does | D．so has |
They don't study in NO 1 middle school, ___ those boys.
| A．so do | B．so don't | C．neither study | D．nor do |
Bill was staying on a farm with his uncle last summer. So ___ Mary.
| A．did | B．has | C．was | D．is |