Question

用所给单词的适当形式填空 1．He began ________(mend) his bike after he had a little rest． 2．Li Lei wants ________(be) a scientist when he grows up． 3．Speak loudly ________(make) us hear you． 4．It's very difficult ________(work) out the maths problem．

Answer 1

答案：
解析：

1．答案：to mend 　　解析：begin to do sth．“开始做某事”。 　　2．答案：to be 　　解析：want to be“想成为……”。 　　3．答案：to make 　　解析：不定式作目的状语。 　　4．答案：to work 　　解析：动词不定式作真正的主语。