3. The airline has so many benefits for its club card members. You can check how many air miles you need for certain destinations and you can ____ buy extra reward points if you need more. A) until B) yet C) still D) even
even
2. You can borrow my car as ____ as you don’t leave me without petrol. A) much B) far C) long D) soon
long
1. During the investigation, experiments were rigorously carried ____ within a number of population groups. A) out B) away C) on D) up
out
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