Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
| A．becomes | B．became | C．has become | D．had become |
I think that this is the best mobile phone available in the world. No other one can ________it.
| A．compare | B．match | C．produce | D．win |
Though the story of Li Yunlong in the TV drama “Bright Sword” is a fiction, much of __________happened is historically true.
| A．that | B．what | C．which | D．it |
—I am searching one online shopping site after another for a computer.
—So __________I before I decided to buy a new camera.
| A．had | B．have | C．am | D．would |
A lot of food as well as some tents _________to Yushu since the earthquake occurred.
| A．has been transported | B．have been transported |
| C．is being transported | D．are transported |
I really don’t know how to express my thanks to Mr. Li, my high school English teacher, without whose help I__________ to college that year.
| A．weren’t to go | B．hadn’t been able to go |
| C．couldn’t go | D．couldn’t have gone |