1. she reached the top of the hill and stopped _______ on a big rock. a. to have rested b. resting c. to rest d. rest 2. do you know the boy _______ under the big tree? a. layb. lain c. laying d. lying 3. you’d better ______ your bike _____ at once. it is monday tomorrow, you know. a. to have, mend b. have, mended c. have, to mend d. to have, mended 4. --- look! the lights in the classroom are still on. --- oh, i forgot _______.
