There has to ______ a well-developed system that can give people a warning when a tsunami is ______ the way.
| A．have；in |
| B．be；in |
| C．have；on |
| D．be；on |
Is this the reason ______ at the meeting for his carelessness in his work?
| A．he explained | B．what he explained |
| C．how he explained | D．why he explained |
As you ______ new words in context, it is a very good method for you to guess their meanings.
| A．come about | B．come across | C．come out | D．come up |
------ There is still a copy of the book in the library. Will you go and borrow_______ ?
----No,I’d rather buyin the bookstore.
| A．it; one | B．one; one | C．one; it | D．it; it |
They were surrounded by the enemy, but finally they _____ out of the encirclement.
| A．managed breaking | B．tried breaking |
| C．managed to break | D．tried to |
----I _____to go for a walk.
-------But I_____ going shopping.
| A．would like; feel like | B．feel like; feel like |
| C．feel like; would like | D．would like; would like |