Private taxi booking apps have ______ like mushrooms in the past few months because of their convenience and high efficiency.
| A．broken up； | B．lined up； | C．come up； | D．sprung up |
The teacher together with the students_______ discussing Reading Skills that____ newly published in America.
| A．are; were | B．is; were | C．are; was | D．is; was |
I know the journey won’t cost much, but I will take some more just _____.
| A．in turn | B．in reward | C．in case | D．in exchange |
---Some English idioms are difficult to understand．
---Exactly, _________ you know the meaning of each word.
| A．if only | B．even though | C．as if | D．now that |
--- What do you imagine _____ her look so upset?
--- _____ by her teacher again.
| A．making; Because she was blamed | B．making; She was being blamed |
| C．made; That she was blamed | D．makes; Because of her being blamed |
--How do you like the plan put forward by Mr.Smith?
--- Considering its real _____ , it will be worth having a try.
| A．price | B．value | C．cost | D．expense |