The air quality in Beijing as well as in the neighboring cities we once spent much time____ better and better.
| A．in getting | B．having got | C．in is getting | D．has got |
Part of the reason Charles Dickens loved his own novel, David Copperfield, was ________ it was rather closely modeled on his own life.(2010·北京)
| A．what | B．that | C．why | D．whether |
He didn't go by bike with me.That's ________ there was something wrong with his bike.
| A．because | B．why | C．how | D．when |
They________have arrived at lunchtime but their flight was delayed.(2011·全国 )
| A．will | B．can | C．must | D．should |
—Must I turn off the gas after cooking?
—Of course.You can never be ________careful with that.
| A．enough | B．too | C．so | D．very |
________Tom to be fit for the office, the boss________taking him on.
| A．Consider；considered | B．Considering；considering |
| C．Considering；considered | D．Considered；considering |