. From this simple concept ________ that has caused a great change in farming.
| A．has developed a technique | B．has a technique developed |
| C．a technique has developed | D．developed as a technique has |
All the people ____ at the party were his supporters.
| A．present | B．thankful | C．interested | D．important |
The elderly need special care in winter, as they are to the sudden changes of weather.
| A．sensitive | B．sensible | C．flexible | D．Positive |
---How do you like the film?
---There was nothing special, it was only ____.
| A．average | B．usual | C．normal | D．common |
--- He was nearly drowned once.
--- When was _____?
--- _____was in 1998 when he was in middle school.
| A．that; It | B．this; This | C．this; It | D．that; This |
—It’s nice.Never before____ such a special drink!
—I’m glad you like it.
| A．I have had | B．I had | C．have I had | D．had I |