A.legal B.optional C.voluntary D.temporary
单项选择题Before we started out, we'd better ______ the time of the next train in the time table.
单项选择题Written in a hurry,______. How can it be satisfactory
单项选择题Mary sends you best wishes ______ a Happy New Year.
单项选择题I was just going to cut my rose bushes, but someone ______ it. Was it you
单项选择题Even the best writers sometimes find themselves ______ for words.