The little girl is walking along the beach, happy and joyful, _____bending down to pick up a beautiful seashell．
| A．approximately | B．regularly |
| C．apparently | D．occasionally |
Oh, it's you, I'm sorry I _know you here.
| A．don't, are | B．didn't, are | C．didn't ,were | D．don't, were |
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 |