While typing, Helen has a habit of stopping ______ to give her long and flowing hair a smooth.
| A．now and then | B．over and over | C．up and down | D．here and there |
Susan, ______ university student from Europe, teaches me ______ art in her spare time.
| A．an; 不填 | B．a; the | C．a; 不填 | D．an; the |
____ to complete the job on time, they set out to work immediately.
| A．Being determined | B．On having determined | C．Determined | D．To be determined |
To his disappointment, the opinion he had stuck ______ out wrong.
| A．to turn | B．to turning | C．to turned | D．to be turned |
Hearing the news, she burst into _____ and burst _____ the room.
| A．crying; out | B．tears; in | C．crying; into | D．tears; out of |
He asked me how much he ________ me and I told him that the petrol pump had shown $ 15.
| A．paid | B．owed | C．offered | D．provided |