Choose the correct optionto fill in the blank in the following sentence: If I _____ old clothes, I ____ them to those in need.

Choose the correct answer A, B, C or D to complete the following sentence. If the Earth _____warmer, lots of sea animals _____ .

Choose the correct options to fill in the blanks in the following sentence: They ________ in the desert if they ________ extra water with them.

Find the word which has a different stress pattern from the others.

Choose the correct option to fill in the blank of the sentence: If we pollute the water, we _____ no clean water to use.

Choose the correct option to fill in the blank in the sentence: Remember toturn off all electric appliances when you don't use them in othertosave lots of _______.