.
To our pleasure, his parents came to accept the fact ____.
| A．at times | B．in time | C．on time | D．at a time |
Whatthescienceteacherdoesandsays _________ of greatimportance to college students.
| A．was | B．are | C．is | D．were |
The worker and poet _____ to the party the other day．
| A．is invited | B．was invited | C．had invited | D．invited |
Betweentworowsoftrees_____theteachingbuilding.
| A．stand | B．stands | C．standing | D．are |
Thenumberofpeopleinvited______fifty,butanumberofthem____absentfor differentreasons.
| A．were； was | B．was； was | C．was；were | D．were； were |
You, who ______ his good friend, should help him get out of trouble.
| A．am | B．is | C．are | D．was |