The number of foreign students attending Chinese universities ________rising steadily since 2010.
| A．is | B．are |
| C．has been | D．have been |
Professor Smith, along with his assistants, _____ on the project day and night to meet the deadline.
| A．work | B．working | C．is working | D．are working |
With a lot of difficult problems ______, the newly-elected president is having a hard time.
| A．settled | B．settling | C．to be settled | D．to settle |
Hong Kong is famous ______ a shopping heaven where you can buy things of high quality and with a reasonable price.
| A．for | B．as | C．by | D．of |
Eating too much fat can______ heart disease and cause high blood pressure.
| A．result from | B．contribute to | C．come across | D．focus on |
Teenagers are damaging their health because they often ______ themselves to so many electric products.
| A．equip | B．absorb | C．devote | D．expose |