He isn't such a man ______he used to be.
| A．who | B．whom | C．that | D．as |
A two-year-old girl named Niu Niu, _______ falling from the IOth floor of a building, was caught by a "super-mother" Wu Juping with her bare arms.
| A．having been noticed | B．noticing |
| C．being noticed | D．having noticed |
Nowhere else in the world, in my opinion, _______ more attractive scenery than in Mount Huangshan.
| A．you can enjoy | B．enjoy you | C．you enjoy | D．can you enjoy |
The country's railway system has launched online ticket-booking and a real-name ticket purchasing system, and _______ requires passengers to provide their ID numbers when buying tickets.
| A．which | B．that | C．what | D．this |
—Have you been working in N0.5 Middle School since you graduated from college?
~No, I _______ in the countryside for 3 years.
| A．have taught | B．had taught |
| C．have been teaching | D．taught |
What some Chinese parents understand is that nothing is fun _______ their children are fond of it.
| A．after | B．when | C．if | D．unless |