My father was watching TV ______ my mother was cooking.
A. when B. while C. until
—How much did your new car ____ you? --¥800 000.
A. spend B. pay C. cost
Love Me Once More, Mom is so ______ that I cry again and again.
A. moved B. moving C. moves
My friend always makes me ______ .
A. to laugh B. laugh C. laughing
I felt tired ______ I worked late last night.
A. because B. when C. if
—I think Helen studies English as ____ as Lucy.
A. careful B. carefully C. more careful