—I am thinking of the test tomorrow. I am afraid I cannot pass this time.—_________! I am sure you will make it.
__________ in the mountains for a week, the two students were finally saved by the local police.
When different cultures, we often pay attention only to the differences without noticing the similarities.
Unless ___ to speak,you should remain silent at the conference.
When I came back, I found my clothes , on the bed.
We should take different measures different conditions and different occasions.