$\text{@su}$

`21`, interested about `->` interested in (interested đi với giới từ in)

`22`, because of `->` because (because of + N/V-ing = because + câu)

`23`, next year `->` the following year (câu tường thuật)

`24`, such `->` so (so + adj + that / such + Noun phrase + that)

`25`, happy `->` happily (đi với động từ cần trạng từ)

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`46`, If there was enough rain, our crops would grow fast (CĐKL2)

`47`, Unless she know who it is, she won't open the door (Unless = If not)

`48`, I suggest making lots of cake for Tet (suggest + V-ing)

`49`, The woman sitting at the desk is the libraian (rút gọn mệnh đề)

hoặc The woman who is sitting at the desk is the libraian (mệnh đề quan hệ)

`50`, Because of the hot weather, we didn't go out. (because of + N/V-ing = because + câu)

$\text{#BTS}$