=>
10. I suggested visiting the Smiths.
-> suggested Ving: đề nghị, gợi ý
11. Please stop asking so many questions.
-> stop Ving: dừng làm gì
12. He stopped smoking three years ago.
-> stop Ving: dừng làm gì
13. Do you consider going to the circus on Sunday?
-> consider Ving: cân nhắc, xem xét
14. I have difficulty in doing this test.
-> have difficulty in Ving: gặp khó khăn trong
15. It took us a whole day to look for these old pictures.
-> take/took sb time to V ~ spend time Ving