After walking on the zigzag path to the mountain top for a few hours, the tourists gathered under trees ________ shade and ________ down to have a rest.
| A．provided; sit | B．providing; sitting |
| C．providing; sat | D．provided; sat |
A_____ has taught us what atoms are made up of and how powerful the atom bomb is.
| A．seaman | B．salesman | C．naturalist | D．scientist |
After work, the young man and his colleagues went to the nearest _____ and sat down at the table for a grand dinner.
| A．bar | B．cafe | C．restaurant | D．dining-room |
It is widely believed that a good _____ between the two countries is important for the development of both China and the USA.
A. connection B. link C. relation D. relationship
It is beyond my _______ to decide whether we should begin our meeting or not.
| A．strength | B．power | C．force | D．might |
He seems to have nothing to do. He always keeps his hands in his ______.
| A．bags | B．chest | C．back | D．pockets |