The boys followed the marks that they ______, until finally they found their way back to the campsite.
| A．left | B．have left |
| C．had left | D．have been left |
— Good morning, Sir. You were looking for me just now?
— Yes. I _________ have a talk with you. Will you come to my office now?
| A．had better | B．would rather | C．may as well | D．would like to |
Seeing the road _________ with snow and cyclists falling down here and there, we decided to walk to our office.
| A．to block | B．blocking | C．blocked | D．to be blocked |
It seems impossible for the two neighboring countries to arrive at a ________ on the conflict in the near future.
| A．comprehension | B．compromise | C．combination | D．competence |
We have made good preparations for Sarah’s birthday, but if she ________ late to the party, it would ruin the surprise for her.
| A．comes | B．would come | C．had come | D．were to come |
Technology has quickened the rate _________ we communicate with the world around us.
| A．for which | B．at which | C．to which | D．with which |