_____ in the queue for half an hour,Tom suddenly realized that he had left his wallet at home.
| A．To wait | B．Have waited | C．Having waited | D．To have waited |
She is getting better by degrees, but it will be some time _____ she is completely well.
| A．that | B．since |
| C．when | D．before |
They sat down opposite each other, but it was some moments ______ they spoke.
| A．after | B．before |
| C．since | D．when |
Mother asked me to take more money _______ something unexpected should happen.
| A．in case | B．so that |
| C．in order that | D．when |
________ I forget, please remind me about it.
| A．In case | B．So that |
| C．In order that | D．When |
Take your umbrella just ________ it rains.
| A．in case | B．so that |
| C．in order that | D．when |