A. is B. are C. am D. be
单项选择题With a lot of difficult problems () , the manager felt worried all the time.
A. settled B. to be settled C. settling D. to settle
单项选择题—Let me introduce myself. Im Albert. —()
A. What a pleasure B. It's my pleasure C. I'm very pleased D. Pleased to meet you
单项选择题Some people hold that the more conservative the world becomes, ______ have old furniture, old houses and old paintings.
单项选择题—When did it begin to snow —It started ______ the night.
单项选择题Syntax is the study of______.