--- _____ do you go to the nursing home?
--- Twice a week. We clean their rooms and do some shopping for them.
A. When B. How C. How often D. How soon
Don’t forget _____ off the lights and air conditioner when you leave.
A. turn B. to turn C. turning D. to turning
A teenage girl was robbed at gunpoint while she _____ for a train.
A. waits B. is waiting C. waited D. was waiting
The man couldn’t move at all _____ his partner came to save him.
A. although B. unless C. because D. until
Since Jan 1, 2016, married couples _____ to have two children.
A. have allowed B. have been allowed C. allowed D. were allowed
All passengers _____ exit at the next stop. The train will not continue.
A. must B. should C. can D. may
