简单介词：asaboutaboveacrossafteragainstalongamongaroundbeforebehindbelowbetweenbydownexceptforfrominnearofoffonoversincewith.

　　合成介词：insideontointonearbythroughoutwithinwithout.

　　双重介词：frombehind.untilafter.outof

　　短语介词：insteadof.atthetopof.dueto.bywayof.

　　填适当的介词.

　　Thesunwashidden_________thedarkclouds.

　　Thestormatseapreventedthefisherman__________fishing.

　　Theycouldnotfindagoodsolution_____________theproblem.

　　Hetookhisson_________thearmandpassedquickly.

　　Those_______guarddidnotgotothefilmlastnight.