相关试题
单选题 You have to ______ before 2 o'clock P.M.
单选题 Upon departure, please ______ the air-conditioner.
单选题 Do you ______ by credit card or in cash?
单选题 ______ emergency, please dial the alarm number 110.
单选题 No lifeguard is ______ in the swimming pool.
单选题 I must ______ to you for not being able to go to your wedding.
单选题 The pen, ______ I bought yesterday, will be sent to you as a gift.
单选题 Free umbrellas are ______ at the entrance of the hotel.