After a talk with his mother, the little boy has seen to _____ that the same mistake doesn’t happen again.
A. one B. it C. him D. himself
To his disappointment, not a single gift _____ on his birthday.
A. he received B. had he received C. did he receive D. received he
Most Australians actually don’t seem to do much sport. _____, Australia is generally considered to be a great sporting nation.
A. Though B. Still C. Otherwise D. Thus
Professor Smith will come here to give a speech. All the preparations must be _____ before 5 o’clock.
A. in time B. in sight C. in place D. in control
---Is everything settled?
---Not yet. _____ I approached the problem, I couldn’t find a solution.
A. Whatever B. However C. Whenever D. Wherever
The retired professor, _____ in his new book in the past three years, hasn’t realized the decline in his health.
A. involved B. being involved C. having involved D. to be involved
