He told us whether _____ a picnic was still under discussion.
A. to have B. having C. have D. had
The computer was used in teaching. As a result, not only _____, but students became more interested in the lessons.
A. saved was teachers’ energy B. was teachers’ energy saved
C. teachers’ energy was saved D. was saved teachers’ energy
Please do me a favor —_____ my friend Mr. Smith to Youth Theater at 7:30 tonight.
A. to invite B. inviting C. invite D. invited
You and I could hardly work together, _____?
A. could you B. couldn’t I C. couldn’t we D. could we
Do you consider it any good _____ psychology?
A. to learn B. to have learned C. learning D. having learned
Lack of money led the company to a situation _____ they had to decide whether they should keep on with their production.
A. when B. where C. that D. which
