Here are the best options for each question:

Question 28: **D. stay**
Question 29: **B. not to forget**
Question 30: **A. go**
Question 31: **D. to come**
Question 32: **A. to be promoted**
Question 33: **B. know**
Question 34: **A. to come**
Question 35: **B. buy**
Question 36: **B. feel**
Question 37: **D. learning**

If you have more questions or need further assistance, feel free to ask!