If his parents are convinced ____ the fact that his son always focuses his mind his study.
| A．of; on | B．of; at | C．by; to | D．on; at |
--- Did Tom get back from Jack’s birthday party in time last night？
--- Yes. The church clock didn’t strike ten he came back home.
| A．before | B．when | C．immediately | D．as |
--- I hear you have an experience in the Roya1 Air Force. Is that true？
--- Yes. I in the Royal Air Force for six years.
| A．served | B．had served | C．joined | D．have joined |
When logistics centre（物流中心）is completed，materials for improving people’s living conditions are all available here.
| A．不填；the | B．a；不填 | C．the；不填 | D．the；the |
---But for your hand with my heavy luggage，I wouldn’t have been here in time.
--- .
| A．Not at all | B．It’s nothing | C．It’s all right | D．It doesn’t matter |
. Television has many advantages. It keeps us _____ about the _____ news and also provides entertainment in the house.
| A．informed; latest | B．to know; later |
| C．learning; latter | D．to think; latest |