There __________ great changes in the smart mobile phones in the last few years.
| A．was | B．have been |
| C．has been | D．were |
I don’t feel like ______ anything. I feel terrible.
| A．eat | B．to eat |
| C．eating | D．ate |
I remember ______ the window before I left but now it’s open .
| A．to close | B．closing |
| C．closed | D．to open |
She parked her car outside the window ______,but next morning she found it missing.
| A．as usual | B．at first |
| C．at least | D．at all |
There’s smile on the teacher’s face. I think she’s ______ our work.
| A．worried about | B．pleased with |
| C．sorry for | D．afraid of |
—I’m not sure ______ Bill will come or not.
—No, he isn’t.
| A．when | B．if |
| C．whether | D．weather |