It was in 1969 ________ two Americans went to the moon by spaceship.
| A．when | B．that | C．at that time | D．just then |
143. As is recorded in history, silkworms were first raised by a woman in ______ is today Hebei Province.
| A．where | B．the place | C．what | D．Which |
144. This method must be very effective, for I’ve seen it _______ jobs by many different people.
| A．applying to | B．being applied to | C．applied to | D．applied for |
145. When people talk about the famous attractions in Changzhou, the first ______ comes into their mind is China Dinosaur Park.
| A．place | B．one | C．that | D．of them |
146. What a pity it is that Bob ______ the habit of smoking at such an early age!
| A．developed into | B．slid into |
| C．switched into | D．slipped into |
147. --- Where does Jack work?
--- I’m not sure, but he worked at Motorola when I last met him, _____.
| A．however | B．though | C．yet | D．Anyhow |