Fill in the blanks by choosing ONE proper answer from the four choices.
Animals can do many amazing things when properly _____.
A、trained
B、train
C、training
D、to train
Animals can do many amazing things when properly _____.
A、trained
B、train
C、training
D、to train
雅思写作
章节列表
01 A Brief Introduction to IELTS Writing and DIction (Lexial Resource)3302 Sentence Writing Skills (Grammatical Range and Accuracy)3603 Sentence Writing Skills (Grammatical Range and Accuracy)1104 A Brief Introduction to IELTS Writing Task 21605 IELTS Writing Task21006 IELTS WritingTask22009 IELTS Writing Task21110 IELTS Writing Task 11311 IELTS Writing Task 11612 IELTS Writing Task 112