We shall go_____we are free.
| A．whenever | B．whatever | C．wherever | D．however |
Thousands of foreigners were ________ to the Shanghai World Expo the day it opened.(2010·江苏)
| A．attended | B．attained |
| C．attracted | D．attached |
It is uncertain ________ side effect the medicine will bring about, although about two thousand patients have taken it.(2010·浙江)
| A．that | B．what | C．how | D．whether |
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 |