During the last three decades, the number of people participating in physical fitness programssharply.
| A． | was increasing | B． | has increased | C． | had increased | D． | will be increasing |
Only when the war was over ____ return to his hometowns.
| A．have the soldiers | B．the soldiers |
| C．the soldiers did | D．did the soldiers |
He suggests we ____ to the cinema at once, otherwise we ____ late.
| A．must go; are | B．go ; will be |
| C．will go ; will be | D．would go ; are |
Come and see me whenever ____.
| A．you are convenient | B．you will be convenient |
| C．it is convenient to you | D．it was he convenient to you |
In the ant city, you will see many problems _____ in this way.
| A．settled | B．settling | C．to be settled | D．to be settling |
From his _______expression, we can guess that the problem maybe was quite _______.
| A．puzzled ; puzzling | B．puzzling; puzzled |
| C．puzzled; puzzled | D．puzzling; puzzling |