小學三年級的英文題怎麽比GRE還難哪？

諸位高手試著做一下下麵三道題，然後給出詳細的解釋。

For questions 1 to 3, choose the most suitable word to be inserted ino the
second bracket based on the first example given in each question.

1. ARAB (TIDE) SIGH
SQUAB ( ) LAUGH

(1) RUDE (2) TIDAL (3) BLADE (4) TIDIER

2. ANTI (BOAR) CABS
AHOY ( ) CALF

(1) BOAT (2) BIKE (3) BUOY (4) BORE

3. ARDENT (RAIN) NINETY

OPPRESSION ( ) TRAPPINGS

(1) PORT (2) RADICALS (3) APES (4) RAPPORT