Question 3:

$\text{1.}$ haven't seen

$\text{→}$ HTHT + since + QKD

$\text{2.}$ is

$\text{→}$ Câu đk loại 1: S + will/ can/ may + V<infi> + if + HTD

$\text{3.}$ is coming

$\text{→}$ Look! chia HTTD

$\text{4.}$ collecting

$\text{→}$ enjoy + V-ing

$\text{5.}$ didn't go

$\text{→}$ last Sunday chia QKD

$\text{6.}$ was taking

$\text{→}$ 8 o'clock last night chia QKTD

$\text{9.}$ was writing

$\text{→}$ Hd đang xảy ra <QKTD> thì 1 hd khác xen vào <QKD>

$\text{→}$ giữa 2 hd có từ nối when/ while

$\text{10.}$ eat

$\text{→}$ would rather than: would rather + V + than + V

$\text{12.}$ to be

$\text{→}$ want sb to-V: muốn ai làm gì

$\text{15}$ was she driving

$\text{→}$ hd đang xảy ra thì 1 hd khác xen vào

$\text{16.}$ have known

$\text{→}$ for a long time chia HTHT

$\text{17.}$ moved

$\text{→}$ HTHT + since + QKD