单选题 The course is designed to help students ___(　　)____ their knowledge of modern American literature.

单选题 A new idea suddenly came to him, but the __(　　)___ of it made him laugh.

单选题 She is by no __(　　)_____ an inexperienced teacher, but there is still room for improvement in her teaching.

单选题 His father arrive limitation

单选题 These companies are sure to encounter financial trouble if they only rely on advertising ___(　　)____ for their funds.

单选题 It is of vital importance for parents to provide ____(　　)___ supervision for their children.

单选题 I spent th reasonin(　　)

单选题 Th sav(　　)