We are confident that the step the Chinese governmenthas taken to cope with the current crisis is ______ of great significance.

Tomwasabouttoclosethewindow_____hisattentionwascaughtbyabird.[ ]

he mid-term examination approaching, studentsshould ______ to stay energetic.

Do you expect _________ a good rest this weekend

______Miss Wang can remember , she has not met the girl before .