1. I am glad telling you that I am going to have interesting activities. → To tell

2. Children enjoy to read picture books. → reading (Cấu trúc: Enjoy + Ving: Thích cái gì đó)

3.  American students have a twenty - minutes break in the morning. → twenty - minutes breaks

Giải thích:

(+) Các đáp án đều là danh từ ghép (Noun + Noun). Từ "20-minute" sẽ bổ nghĩa cho từ "breaks" 
(+) "two" tức là 2 mà 2 là số nhiều → break có thêm "s" 

4. The tea is too hot for her to drink it.→ was so hot

Giải thích:

Be too + adj + for somebody + to V = be so + adj + that somebody + (can/could) not + V = quá… đến mức ai không thể làm gì đó)

5. Would you like a few tea?- Yes, I’d love to. → Yes, please

Hiểu theo nghĩa:

Tạm dịch: Bạn có muốn uống một ít trà không? - Vâng, làm ơn

1.I am glad tellingyou that I am going to have interesting activities. -> To tell

2. Children enjoy to read picture books-> reading

3.American students have a twenty - minutes break in the morning. -> twenty - minutes breaks

4. The tea is too hot for her to drink it-> was so hot

5. Would you like a few tea?- Yes, I’d love to. -> Yes, please