题目
Watch the video, review the simple pasttense and present perfect tense and do thefollowing exercises.iSmart3 填空题 1分Robert underline(1)(start) to use acomputer when he was an office worker.
Watch the video, review the simple past
tense and present perfect tense and do the
following exercises.
iSmart
3 填空题 1分
Robert $\underline{1}$(start) to use a
computer when he was an office worker.
题目解答
答案
根据句意，“when he was an office worker”表明是过去时，主句“start”应改为“started”以匹配时态。完整句子为：
“Robert started to use a computer when he was an office worker.”
答案：started
解析
本题考查知识点为简单过去时态的运用。解题思路如下：
- 首先分析句子中的时间状语 “when he was an office worker”，这个时间状语表明动作发生在过去。
- 然后根据简单过去时态的规则，对于动词 “start”，需要将其变为过去式形式。在英语中，一般动词的过去式是在词尾加 “-ed”，所以 “start” 的过去式是 “started”。
- 最后将 “started” 填入句子中，得到完整句子 “Robert started to use a computer when he was an office worker”。