问题

Look! They _______________ a picnic.
A:have
B:is having
C:are having
D:having
B:is having
C:are having
D:having
正确答案是:
同类题型
May I do the rest of the work tomorrow?—Yes, of course. You finish it today.
Peter has been busy these days and seldom ____ to come over to have a chat with me.
“It is not only you but also Tom who ____,” said the teacher after knowing what had happened.
During the earthquake, many buildings fell down. But the people there didn’t hope.