____you look after it carefully，this coat will keep you warm through many winters.
A: If
B: Unless
C: Before
D: So
A: If
B: Unless
C: Before
D: So
举一反三
- You must look carefully ______ you cross the road . A: before B: after C: and D: but
- I want you to be very __________ when you look in the park for the missing woman so you won't miss her. A: thoroughly B: thorough C: through D: carefully
- If you had worked carefully, you _____(not make) so many mistakes.
- You may borrow the book ______ you keep it clean. A: when B: unless C: as long as D: after
- If you had worked carefully, you _____(not make) so many mistakes.（1.0分）