If there is sufficient sea room, alteration of ___may be the most effective action to avoid close-quarters situation. A. speed and course B. speed alone C. course alone D. speed or course

单选题

If cancer is spotted earlier, there is a high chance of ________.

答案解析

单选题

If you want to succeed, there is no ________ for hard work. So, work hard!

答案解析

单选题

If we say that there is no amount of radiation exposure that is safe, we are talking about____.

答案解析

单选题

_____ there is smoke, there is fire.

答案解析

单选题

---Is it all right if I sit there? ---______, sir. The seats are for elderly people only.

答案解析