She wants to study English and she’s going to study economics________.
| A．at a time | B．at times | C．at the same time | D．in the same time |
We are ________ a school trip.
| A．in | B．on | C．at | D．for |
---When is Christmas?
--- It’s _____ December 25.
| A．in | B．to | C．on | D．at |
---Is Nancy doing her homework?
-----___________.
| A．No, she is | B．No, she isn’t | C．Yes, she does | D．Yes, she isn’t |
What ___________?
| A．does happen | B．is happening | C．do happen | D．are happening |
What ________ you usually ________ for the Lantern Festival?
| A．do, do | B．are, do | C．are, doing | D．do, doing |