Xiao Pei said she ______ Hainan for 3 months.
| A．has been in | B．had been in | C．had been to | D．had gone to |
I must go now. _____, if you want that book I'll bring it next time.
| A．Incidentally | B．Accidentally | C．Occasionally | D．Subsequently |
Achieving a high degree of proficiency in English as a foreign language is not a mysterious _____ without scientific basis.
| A．process | B．practice | C．procedure | D．program |
We had a marvelous holiday: only the last two days were slightly _____ by the weather.
| A．damaged | B．hurt | C．ruined | D．spoiled |
They were so far away that I couldn't _____ their faces clearly.
| A．see through | B．make up | C．see off | D．make out |
Stressful environments lead to unhealthy behaviors such as poor eating habits, which _____ increase the risk of heart disease.
| A．in turn | B．in return | C．by chance | D．by turns |