The number of foreign students attending Chinese universities ________ rising st

题型：同步题难度：来源：

The number of foreign students attending Chinese universities ________ rising steadily since 1990.[     ]
A. is
B. are
C. has been
D. have been

答案

举一反三

Ever since my brother graduated from the university, he _______ in the present company for 15 years and he is now chief engineer of the company.   [     ]
A. worked
B. has been working
C. is working
D. works

题型：同步题难度：| 查看答案

— I _____ to get through to her all day, but no one answered the phone.
— Relax yourself. She will be all right.
A. try
B. have tried
C. have been trying
D. tried

题型：黑龙江省月考题难度：| 查看答案

The PLA are now searching for a woman who is reported to______ since the quake hit the area last Monday.
A. have been missing
B. have got lost
C. being missing
D. get lost

题型：安徽省月考题难度：| 查看答案

— Tom says he is too tired to go on.
— He can"t be. He ________for an hour.
A. just worked
B. has only been working
C. has just worked
D. had only been working

题型：山东省期末题难度：| 查看答案

Traffic conditions in Beijing________for decades. At first people only complained about jams during rush hours,but today every hour is rush hour. [     ]
A. is worsening
B. have worsened
C. have been worsening
D. worsened

题型：专项题难度：| 查看答案