now是什么時(shí)態(tài)

　　This unit is now an established part of the course.

　　這個(gè)單元現(xiàn)在為本課程既定的一部分。

　　There isn't nearly enough time to get there now.

　　現(xiàn)在根本沒(méi)有足夠的時(shí)間趕到那兒。

　　Now is a good time to invest in the property market.

　　現(xiàn)在是對(duì)房地產(chǎn)市場(chǎng)投資的好時(shí)機(jī)。

　　Now let me see ─ how old is she now?

　　讓我想一想，她現(xiàn)在多大了呢？

　　Now is a good time to buy a house.

　　現(xiàn)在買(mǎi)房子正是時(shí)候。