Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
| A．becomes | B．became | C．has become | D．had become |
_______ that Tom got inside the room to see what was going on.
| A．So strangely did he feel | B．So strangely he felt |
| C．So strange did he feel | D．So strange he felt |
There is no power like _____ power of confidence, and there is no student as competitive as ______ student who trusts his own abilities.
| A．the; a | B．a; the | C．/; a | D．the; / |
—What did he sayhis stupid behavior?
—He admitted having made a serious mistake.
| A．in explanation of | B．in favor of | C．in case of | D．in fear of |
Sadly the reading room where Karl Marx did a lot of reading had moved from itsplace into another building.
| A．primary | B．temporary | C．traditional | D．original |
The city is ancient and this very tower hasmany changes.
| A．met | B．seen | C．discovered | D．reacted |