He made up his mind to devote his life_______ pollution_______ happily.
| A．to prevent; from live |
| B．to prevent; from living |
| C．to preventing; from living |
| D．to preventing; to live |
It’s a good idea ______ new words every day.
| A．checking | B．checks | C．to check | D．checked |
当别人称赞你时, 你应该说: “____”。
| A．Thanks. | B．Good. | C．Yes. | D．No. |
当你被介绍认识某人后, 你应该说: “____”。
| A．Good morning! | B．Thank you! |
| C．Nice to meet you! | D．How are you? |
—What ____ is Jane in?
—She is in ____ Six.
| A．Class; Class | B．Class; class |
| C．class; class | D．class; Class |
—Welcome to our school.
—____
| A．OK. | B．Thanks. |
| C．Excuse me. | D．Hello. |