ents don’t care mypocket money goes, but one thing is sure: the money spent must be worthwhile.

Mike pretended ___ Chinese when I came into the classroom.

Only after a baby seal is pushed into the sea by its mother _____ to swim.

5.The growing speed of a plant is influenced by a number of factors, _______ are beyond our control.

Professor Smith will come here to give a speech. Allthe preparations must be _____ before 5 o’clock.