Chia động từ trong ngoặc

ai giúp mink với
----- Nội dung dịch tự động từ ảnh -----
11-
(not buy) a bigger house if I
(not get ) promoted at work.
12-If he
(not finish) the vegetables, he
(not have) a dessert.
13-My uncle
(can) to go to the opera if he
(remember) to get the tickets.
14- If you
(not put) sugar in your coffee, it
(not taste) nice.
15-Sandra, if you
(not hurry up), you
(be) late for the meeting.
16-Cristopher
(be) so happy if he
|(find) the money he lost.
17-Your motorbike
(not break down) if the mechanic,
(check) it.
18-If you
(not take) an aspirin, your headache
(not disappear).