<span>10 concentrate, 6 venom, 7 an upset, 2 loss, 1 slippery, 9 sickness, 4 soothe, 8 cure, 5 strain, 3 blurred.</span>
Ответ:
Worried -Past Simple or Past Participle;
thinking- Present Continuous or Gerund;
think-Present Simple;
are you-Present Continuous.
Will the boys stay in the library after school?