Don’t stop here. Go on ________ until you reach the end line.
A. to run
B. run
C. runing
D. running
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The books ________ to the library are put back on the shelves immediately.
A. returning
B. returned
C. which returned
D. having returned
________in the leg, the soldier was sent to hospital at once.
A. Seriously injured
B. To be injured
C. Being injured badly
D. Having injured
I’d like ________ to the concert with you because I enjoy ________ to music.
A. going; listening
B. to go; listening
C. going; to listen
D. to go; to listen
The man forgot ________ the door before ________ to bed.
A. locking; going
B. to lock; going
C. locking; go
D. to lock; go