48. Viet Nam is a very safe country. It has controlled the Covid -19 pandemic well
A. Vietnam which has controlled the Covid -19 pandemic well is a very safe country.
B. Vietnam where has controlled the Covid -19 pandemic well is a very safe country.
C. Vietnam, which has controlled the Covid-19 pandemic well, is a very safe country
D. Vietnam which is a very safe has controlled the Covid-19 pandemic well country.
49. My friend told me, "If I were you, I would not ask him for help."
A. My friend advised me not to ask him for help.
B. My friend told me to ask him for help.
C. My friend prohibited me from asking him for help.
D. My friend suggested not asking him for help.
50. They are going to celebrate their 25th wedding anniversary in Vietnam.
A. Their 25th wedding anniversary are going to celebrate in Vietnam.
B. Their 25th wedding anniversary is going to be celebrated in Vietnam.
C. Their 25th wedding anniversary are going to be celebrate in Vietnam.
D. Their 25th wedding anniversary is going to be celebrate in Vietnam.