She will tell us why she feels so strong that each of us has a role________in making the earth a better place to live in.
| A．to have played | B．to play |
| C．to be played | D．to be playing |
Hold the book ______ please, for I can't see the words in it clearly.
| A．more closer | B．more closely | C．closely | D．closer |
. He is one of those who ______ very hard.
| A．works | B．work | C．is | D．are |
The parents as well as the baby ______ in high spirits.
| A．are | B．is | C．has been | D．have got |
. Both bread and butter ______ on sale in this shop.
| A．is | B．are | C．have | D．has |
The police ______ for the lost child everywhere.
| A．is looking | B．has looked | C．are looking | D．are looked |