Most birds find it safe to sleep in the trees, but _______they have eggs or young chicks, they don’t use a nest.
| A．why | B．how | C．unless | D．where |
Water ____________ oxygen and hydrogen..
| A．contains | B．is contained | C．includes | D．included |
Paper making began in China and from here it _____ to Europe and North America.
| A．spread | B．grew | C．carried | D．developed |
My father knows clearly that smoking is bad for his health, but he just cannot____________ it.
| A．have fun with | B．get rid of | C．look forward to | D．get away with |
The doctor said that you are _________, so you’d better have a healthy diet and try your best to lose your weight.
| A．thin | B．overweight | C．slim | D．energetic |
. It is generally considered unwise to give a child _____ he or she wants.
| A．however | B．whatever | C．whichever | D．wherever |