A: sure
B: make certain
C: be sure
D: be certain
举一反三
- Before you start, make sure you have a clear idea of why you are starting a company.
- Are you （）of travel. A: sure B: proud C: certain D: fond
- If you want to leave deep impression on somebody, you’d better make sure to have _______ before the conference.
- At hotel, before you turn on the TV, you should make sure that you have a clear understanding of the method of payment and the side of the bill._
- v. to make sure or certain; guarantee; secure
内容
- 0
If a person is not quite sure about how to find a certain place, you might_________.
- 1
______ before you leave the lab. A: Make sure that the windows are shut B: To make sure that the windows are shut C: Making sure to shut the windows D: To be sure to shut the windows
- 2
You can only be sure of _______ you have at present; you cannot be sure of something ______ you might get in future. A: that; what B: what; / C: which; that D: /; that
- 3
Make sure you _____ before exercise, otherwise you may injure yourself.
- 4
在顶升飞机之前，确保飞机的稳定性。 A: Make sure that the aircraft is stable before you lift it with jacks. B: Make sure that the aircraft settles before you lift it with jacks. C: Before jacking up aircraft make sure that aircraft stability is ensured. D: Before jacking up aircraft make sure that aircraft stabilization is ensured.