Mobile phones __________ in China are well worth trusting for many reasons.
| A．produce | B．producing |
| C．have been produced | D．produced |
Which do you enjoy ____ your spare time, surfing the Internet or building up your strength?
| A．to spend | B．spend | C．spending | D．to spending |
The financial crisis is attacking the USA, and it is true ___ many other countries.
| A．to | B．against | C．of | D．by |
---- Can you help me out?
---- Yes, I will solve the problem with this ____.
way B. method C. mean D. means
Bell is considered _____ the first phone in 1896.
| A．inventing | B．having invented |
| C．to invent | D．to have invented |
---- Are you still a teacher?
---- No, I____ in Harbin No. 3 High School for five years.
| A．worked | B．have worked | C．have been working | D．had worked |