______ 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
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
举一反三
- ______the windows before<br/>leaving. A: Shutting B: Shut C: To shut D: Shuts
- _____windows before leaving. A: Shutting B: Shut C: To shut D: Do shutting
- —I’m leaving now. —______ you turn off the lights and the computer. A: To make sure B: Make sure C: Made sure D: Making sure
- 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.
- 【单选题】6. ________wear seat belt when you drive a car. A.Make sure of B.Make sure that C.Be sure to D.Be sure that A. Make sure of B. .Make sure that C. Be sure to D. Be sure that