________ Chai Jing said in her video about the smog has caused public concern.
| A．That | B．Which | C．How | D．What |
With his money _____, he couldn’t go home.
| A．leaving | B．missed | C．running out | D．run out |
Cleaning women in big cities usually get _____ by the hour.
| A．pay | B．paying | C．paid | D．to pay |
_____ Kate and Joan who taught Tom the nice song last night?
| A．Was it | B．Were there | C．Will it be | D．Must it have been |
In the office I never seem to have time until after 5:30 p. m. , _____ many people have got home.
A whose time B. that C. on which D. by which time
第二部分英语知识应用（共两节，满分50分）
第一节语法和词汇知识（共20小题；每小题1分，满分20分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
Good technique in medicine means less pain and fewer deaths and, _____ it is our duty to master it.
A. altogether B. therefore C. otherwise D. however