With the successful launch of Tiangong-l, which was _____ breakthrough in space field,
China's space dream took a step closer to _____ reality.
| A．a;/ | B．the； a | C．a; the | D．the;/ |
increasing the distance of your walks, you may lose more weight.
| A．By | B．From | C．On | D．For |
It’s an old car, it’s very reliable.
| A．so | B．but | C．or | D．And |
She came in forcoffee and told metraffic kept her awake last night.
| A．a, the | B．a, 不填 | C．the, the | D．the, 不填 |
Buy two CDs and get completely free.
| A．other | B．the other | C．another | D．All |
If you had seen a doctor, you much better now.
| A．are | B．will be | C．would be | D．would have been |