过去进行时态在英语中用来描述过去某一具体时间正在发生的动作或存在的状态。它由“was/were”加上动词的现在分词（动词ing形式）构成。例如，“He was reading when I entered the room.”（我进入房间时，他正在阅读。）这种时态不仅反映了动作正在进行，还常常与过去简单时态连用，来展现过去某一刻的主要动作与背景动作。理解并正确运用过去进行时态，对于提高英语语言技能是很有帮助的。
在这次练习中，我们将通过填空题形式来练习过去进行时态。你将需要根据给出的提示词，填入正确的动词过去进行时形式。认真阅读每个句子，思考如何以最准确的方式填空，这样可以帮助你更好地掌握这一重要的语法点。
练习1：填写正确的过去进行时态动词形式
While I *was cooking* (cook), the phone rang.
They *were playing* (play) soccer when it started to rain.
What *were you doing* (do) at 9 PM last night?
She *was writing* (write) an email when her friend called.
We *were studying* (study) for our exams all weekend.
The children *were watching* (watch) TV all morning.
Lisa *was driving* (drive) to work when she heard the news on the radio.
The cat *was sleeping* (sleep) on the couch when I left home.
I *was thinking* (think) about you the whole day.
He *was working* (work) on his project when his computer crashed.
The customers *were waiting* (wait) in line when the store opened.
You *were talking* (talk) so loudly that everyone could hear you.
My sister *was studying* (study) French before she moved to Paris.
It *was snowing* (snow) all night, so the streets were covered.
They *were celebrating* (celebrate) their anniversary when we arrived.
练习2：从给出的提示词中选择和填入正确的过去进行时态形式
At this time yesterday, we *were eating* (eat) dinner.
Tom *was reading* (read) a book while his brother was watching a movie.
What *were you thinking* (think) about just now?
Emily *was trying* (try) to fix her bike all afternoon.
The teacher *was explaining* (explain) the lesson when the bell rang.
We *were running* (run) in the park when we saw a deer.
She *was sitting* (sit) at the cafe, staring into the distance.
Why *were you laughing* (laugh) during the meeting?
The couple *were planning* (plan) their vacation when I called them.
It *was raining* (rain) hard last night, wasn’t it?
I *was washing* (wash) my car when I noticed the flat tire.
The birds *were chirping* (chirp) loudly early in the morning.
You *were working* (work) too much last week.
While he *was mowing* (mow) the lawn, he found a lost ring.
The musicians *were tuning* (tune) their instruments before the concert began.
