SAVING ENERGY PRACTICE TEST 1I. CHOOSE THE WORD OR PHRASE THAT...

13. - 200 CAU TRAC NGHIEM KQ ANH 9 -BAI 6-7
200 CAU TRAC NGHIEM KQ ANH 9 -BAI 6-7

13. In order to

__________ with his studies, he worked through the summer.

a. take on

b. catch on

c. catch up

d. take up