— I apologize for not being able to join you for dinner.— __________. We’ll get together later.
| A．Go ahead | B．Not to worry | C．That’s right | D．Don’t mention it |
--- I _______ so busily recently that I ______ no time to help you with your maths.
---That’s OK. I can manage it by myself.
| A．had been working; had had | B．have been working; had |
| C．have been working; have | D．am working; will have |
---May I borrow your paper? ---__________.
| A．By all means | B．Never mind |
| C．You are welcome | D．Don’t mention it |
_______, her hands shook constantly and violently.
| A．Knowing her son killed in the mine | B．When she knew her son was killed in the mine |
| C．Known her son killed in the mine | D．She knew her son killed in the mine |
For a moment nothing happened. Thenall shouting together.
| A．voices had come | B．came voices |
| C．voices would come | D．did voices come |
I was at a loss what to do next when an excellent idea suddenly` _______ me.
| A．knocked at | B．occurred to | C．happened to | D．knocked down |