It’s said that scientists are working hard to________ a way to deal with H7N9 avian influenza(H7N9禽流感)—Really That’s great!

Wouldn’t it be ____for you to pick me up at five o’clock and take me to my company？

We don’t have enough nurses to look after the patients. At least _____ are needed.

The following day she didn’t go to the club_____, she took a short walk in the park nearby [ ]

Helen is a thoughtful girl. — Yes. I think she is _____ plan everything well.