giải thích nữa nhé: 1.There are a lot of tickets left, so you...................... pay for the tickets in advance. 2.I ................ have worn my best suit to the party yesterday,everyone else was very casually dressed Điền các động từ khuyết thiếu vào chỗ chấm

1. Đối với câu 1, ta có thể điền các động từ khuyết thiếu như sau:

- should: so you should pay for the tickets in advance.
- could: so you could pay for the tickets in advance.
- have to: so you have to pay for the tickets in advance.
- need to: so you need to pay for the tickets in advance.

2. Đối với câu 2, ta có thể điền các động từ khuyết thiếu như sau:

- should: I should have worn my best suit to the party yesterday.
- ought to: I ought to have worn my best suit to the party yesterday.
- could: I could have worn my best suit to the party yesterday.
- might: I might have worn my best suit to the party yesterday.