Complete os espaços abaixo para formar frases afirmativa, interrogativa e negativa do tempo verbal

"present perfect" A)they (study) english
B) it (not change) since october
C) clark (SEE) melinda lately
D) i (DO) a lot of things today
E)i (know) susan for 10 years
F)he (not follow) my page for a long time
G) sam (use)Facebook since i know her

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