Having a trip abroad is certainly good for the old couple, but it remains _______ whether they will enjoy it.
A. to see B. to be seen C. seeing D. seen
---Excuse me, dad, but I’m going to the club to meet my friends in the football team.
---OK. _______ .
A. Good luck B. Congratulations C. With pleasure D. Have fun
Until the start of the Industrial Revolution, mankind was poor, hungry, and constantly at the _______ of disease and natural disasters.
A. power B. limit C. control D. mercy
The food ran out early, but __________ the party was a success according to the guests present that evening.
A. therefore B. meanwhile C. otherwise D. however
A new survey released by Yale University finds that Americans trust scientists most when ______ comes to information on climate change.
A. that B. it C. this D. there
Mr. Bush is on time for everything. How ____ it be that he was late for the important meeting?
A. can B. should C. may D. must
