$\text{1.}$ cutted $\text{→}$ cut
$\text{→}$ quá khứ phân từ của cut là cut
$\text{2.}$ working $\text{→}$ worked
$\text{→}$ have/ has + Ved/ P2
$\text{3.}$ haven't $\text{→}$ hasn't
$\text{→}$ The lesson là số ít nên dùng has
$\text{4.}$ eat $\text{→}$ eaten
$\text{→}$ Quá khứ phân từ của eat là eaten
$\text{5.}$ hasn't $\text{→}$ haven't
$\text{→}$ I dùng với haven't
$\text{6.}$ working $\text{→}$ work
$\text{→}$ work: công việc
$\text{7.}$ since $\text{→}$ for
$\text{→}$ for + khoảng tg
$\text{8.}$ since $\text{→}$ for
$\text{9.}$ for $\text{→}$ since
$\text{→}$ since + tg xác định
$\text{10.}$ hasn't $\text{→}$ haven't
Exercise 2:
$\text{1.}$ hasn't played
$\text{→}$ HTHT + since + QKD
$\text{2.}$ are attending
$\text{→}$ right now chia HTTD
