I clean my room once a week, and the job _____ me two hours．
| A．costs | B．takes | C．pays | D．Spends |
Wherever I____________these days. I always carry my umbrella.
| A．am going | B．shall go | C．go | D．should go |
It is five years since my dear aunt ________ here.
| A．left | B．has left | C．is left | D．had left |
It _______ nearly two weeks ________ I had received his letter.
| A．is, that | B．was, that | C．is since | D．was, since |
----This returned Chinese scholar has become one of the top experts in this field.
----Yes,I know him very well.He_________in Africa with animals for eight years.
| A．has worked | B．had worked | C．worked | D．has been working |
----Does Liu Hua serve in the army?
----No,but he__________in the army for three years.
| A．served | B．has served | C．is serving | D．would serve |