1 . —Who should be responsible for the accident?
—The boss, not the workers.They just carried out the order ________.

A．as told

B．as are told

C．as telling

D．as they told

2 . John ______ in his room when he heard screaming.

A．is studying

B．studied

C．was studying

D．has studied

3 . It is demanded that the plan _____ out as soon as possible.

A．must be carried

B．is to carry

C．carried

D．be carried

4 . The reporter has ever had a case ______ he got the wrong end of the stick.

A．which

B．that

C．who

D．where

5 . Not only ______ in photography, but _____ an amateur courses to update my skills.

A．I am interested; I took

B．interested I am; did I take

C．I am interested; did I take

D．am I interested; I took

6 . Every evening after dinner, _____ tired from work, I will spend some time reading.

A．unless

B．if

C．until

D．when

7 . With so much noise outside, the students can’t _____ their homework.

A．concentrate on

B．depend on

C．keep on

D．put their hands on

8 . In ____ accident _____ knowledge of first aid can make _____ real difference.

A．the; a; the

B．an; a; a

C．an; the; 不填

D．a; a; 不填

9 . _____ is no doubt _____ John’s knowledge of first aid saved Ms Slade’s life.

A．It; that

B．It; which

C．There; that

D．What; that