Almost all of his time ______ experiments, he has no time to visit his parents.
| A．devoted to do | B．devoting to doing | C．devoted to doing | D．is devoted to doing |
Smoking is so harmful to personal health that it kills ________ people each year than automobile accidents.
| A．seven more times | B．seven times more | C．over seven times | D．seven times |
I have made _______ clear _______ I have nothing to do with the accident.
| A．it; what | B．that; that | C．this; what | D．it; that |
On returning home, she found a note _______ to the door, _______ “Call in later.”
| A．attaching; reading | B．attaches; saying |
| C．attached; which reads | D．attached; reading |
Although all of the apples ________, none of them ________ good.
| A．have been tasted; taste | B．have been tasted; are tasted |
| C．have tasted; taste | D．have tasted; are tasted |
Such good use had beenhis spare time_________ his English has improved a lot．
| A．made of; as | B．made of; that | C．made in; that | D．found in; as |