A big party was held in NO.18 Middle School last night, the teacher with students _____ singing and dancing happily at the party.
| A．is | B．was | C．are | D．were |
A big party was held in NO.18 Middle School last night, the teacher with students _____ singing and dancing happily at the party.
| A．is | B．was | C．are | D．were |
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