― You didn't lock the back door.

― You are wrong. I ______      

A. have locked it         B. lock it myself          C. did lock it                      D. do lock it

Mr. Blake drove slowly on the way home until he arrived ______ the speed limit was 60 miles per hour.

A. because                 B. which                      C. where                             D. that

Darkness ______, so we had to stop our journey and stay on a farm for the night.   

A．fell                  B．spread                           C．broke                            D．happened 

It struck me like lightning ________ difficult it must have been for a woman to get medical training in Africa at that time.

A. how        B. what                     C. whether                 D. even if

The early warning of floods,       over the radio and on TV, spread quickly through the areA.  

A．having broadcast     B．broadcasting     C．broadcast               D．to be broadcast

Broadly speaking, I would agree with Shirley, though not ____________.    

A．widely      B．entirely           C．extremely         D．eventually

― Isn’t it hard to drive downtown to work all the time?

―Yes, and that’s why I ______   to work by bicycle.      

A. have gone   B. have been going      C. was going      D. will have gone

The minister met the workers and engineers working on the project in Zambia, most ______ were from Jiangsu, ChinA.    

A. of which      B. of who       C. of whom       D. of them

Though I had wanted to finish the essay by noon, it didn’t quite _____ as planned.   

A．find out                B．work out                        C．make out             D．give out

 Shelly has been preparing carefully for the driving test so that she can be sure of passing it at her first ______.

A．intention                 B．purpose                         C. attempt                           D. desire