Ex. 11
a. appeal e. start-up
b. detection f. awareness
c. feature g. freshman
d. recruiter
Ex. 12
Past Simple - 2e rijtje
a. fed h. lay o. bet
b. began i. swore p. sank
c. sold j. led q. wore
d. sought k. chose
e. arose l. flew
f. spent m. sent
g. rose n. became
Ex. 13 Present Perfect - 3e rijtje
a. Have you ever felt that one of your ideas was impossible?
b. Have you grown used to the idea of not having any certificates?
c. Have you never sought to develop a health app?
d. Has your mother often spoken to you about going back to school?
e. Have you just had another huge hit called Perfect Shot?
f. Has your father already taken any pictures with your latest app?
g. have you ever taught anybody else how to make an app?