—So you didn’t say hello to him last night?
—Well, I stopped and smiled when I saw him, but he_______ me and walked on.
| A．ignored | B．refused | C．asked | D．missed |
The deer ____when the animals , harmful to them, disappeared.
| A．multiplied | B．produced | C．laid | D．developed |
The students entered the classroom, smiling and _______, and _____ down to have their lessons.
| A．talked , sat | B．talking, sitting | C．talking , sat | D．talked; sitting |
If your knowledge can be in some way ______ with my experience， we are sure to succeed.
| A．joined | B．connected | C．united | D．combined |
If you put too many oranges in that paper-bag it will _____.
| A．spread | B．explode | C．crash | D．burst |
The physics teacher told the students to observe carefully what would happen when a (n) _____ acted on the object.
| A．force | B．energy | C．power | D．strength |