He is very popular among his students as he always tries to make them_____in his lectures.
| A．interested | B．interesting | C．interest | D．to interest |
I’m surprised that some of these old houses after the earthquake.
| A．get up | B．stay up | C．put up | D．give up |
For a long time they walked without saying ____ word. Jim was the first to break
____ silence.
| A．the; a | B．a; the | C．a; / | D．the; / |
He had a wonderful childhood, _____ with his mother to all corners of the world.
| A．travel | B．to travel | C．traveling | D．traveled |
It took me a long time before I was able to fully appreciate what they _____ for me.
| A．had done | B．did |
C．would do | D．were doing |
With difficult problems ___, the president feels relaxed now.
| A．settled | B．settling | C．to settle | D．being settled |