[ Gerunds + To Infinitive ]
Linh! remember……… the door befor going out!
A. locking
B. to lock
C. locked
D. lock

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Gerunds and Infitinitives › ViewI think it would be very stressful ______ your own business. (run)
A. to run
B. running
Grammar › View
– Why are you out of breath?
– Because ______________up the stairs from the bottom floor.
A. I’ve just run
B. I’ve just been running
C. I’ve just ran