— It’s a long time ______I saw you last.
— And what is a pity now that it will be a long time______ we see each other again.
| A．before; since | B．since; when |
| C．when; before | D．since; before |
--" Would you mind the window? It's hot here!" May said.
--"__________. "Tom replied.
| A．to open ; No, please | B．open ; Yes, please |
| C．opening; No, of course not | D．opening ; Yes, please |
--Hi, Tracy, you look tired.
--I am tired. I__________ the living-room all day.
| A．painted | B．have been painting |
| C．had painted | D．have painted |
--Thank you very much.
--Not at all , I was____________ glad to help.
| A．too | B．only too | C．not so | D．much |
In Switzerland, six miles west of Geneva,___________ a collection of laboratory buildings.
| A．lie | B．are lying | C．lies | D．lays |
Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
| A．becomes | B．became | C．has become | D．had become |