I’m planning to hold a party in the open air,but I can make no guarantees because it _____the weather.

Each boy and each girltalking about optional courses（选修课）.—Yes! And the eachtheir favorite one!

33I have been wanting to get a better understanding of your family affairs ________ I left

Once we discover for economic development.

When you meet a new word in reading the English papers, you can guess its meaning but needn’t always ______ the dictionary.