"Mary, turn off the water_________you are brushing your teeth. " "Sorry, I'll do it at once. "A. until B. while C. during
During her first day in ChinA. Lily was asked__________.A. whether she could use chopsticksB. whether could she use chopsticksC. if she can use chopsticksD. if can she use chopsticks
If he __________harder, he will catch up with us soon.
You __________write the poem down.Our teacher will give us a copy.
This year our school is__________than it was last year.
She had to stop__________her test paper because it was time to hand it in.