Once in a while I visit my grandparents on the farm and stay there for some days.

Once in a while I visit my grandparents on the farm and stay there for some days.

A. Regularly

B. Sometimes

C. Usually

D. Rarely
Xem đáp án
B là đáp án đúng
Lời giải:
once in a while = sometimes (thỉnh thoảng)