每天做一次语法测试

practice - v. to do something again and again in order to get better at it

review - v. to study or look at something again

quiz - n. a short spoken or written test that is often taken without preparation

infinitive - n. the basic form of a verb (to + verb)

gerund - n. an English noun formed from a verb by adding -ing

boring - adj. dull and uninteresting

box office - n. an area in a theater where tickets are sold for a movie or performance

clause - n. a part of a subject that has its own subject and verb

branch - n. a part of a tree that grows out from the trunk

occasion - n. a particular time when something happens