Researchers found that people who drank excessively were twice as likely as those who drank regularly ______ ischemic(出血性) heart attacks.
We should do what we have to do ______ we can do what we want to do in the future.
Please don’t phone him between 1 and 3 p.m. tomorrow. He _____ a lecture then.
If you are not satisfied with the price _______, we can still discuss it.
Drunk driving used to occur _______, but now it is under control.
Cooking calls for patience and time but it is enjoyable experience.