Our teacher tells us that it’s dangerous to shelter ________ the rain under the trees in summer.

I failed in the spoken examination last term and only then _______ the importance of practicing speaking English.

Don’t add salt to the soup, for it is ________.But you may add some sugar to makeit_______.

Each girl present at the party was wearing a flower in the hair, which____ theirbeauty. [ ]

Where did you find the professor who madethe speech yesterday” “It was in the hall ______ the students often have a meeting”