用所给动词的正确形式填空。
①My parents want me____ (stay) at home every night because it’s dangerous ou tside.
②—You look so sad today.     —I____ (argue) with my girlfriend last night.
③Lucy, what should I do? I need some money ____  (buy) some presents for my best friend.
④—I found it difficult ____ (get) to sleep in the night.
—You’d better____  (take) some sleeping pills.
⑤Lily is 1.7 meters tall. She is tall enough ____  (reach) the apples on the tree.
⑥Don’t ____ (compare) others with yourself, just ____  (work) hard.
⑦She has to____ (go) to see the doctor.

医生在给骨折病人做手术时，需要特别注意保护的结构是（    ）

豌豆高茎由A基因控制，矮茎由a基因控制，Aa表现的性状是（    ）

如图，直线a、b和c、d是处于匀强电场中的两组平行线，M、N、P、Q是它们的交点，四点处的电势分别为φ_M，φ_N，φ_P，φ_Q，一电子由M点分别到N点和P点的过程中，电场力所做的负功相等，则（   ）

I really enjoyed the long ____ (飞行) with him last week.