問題詳情：
根據所給詞的適當形式填空。
boy always manages_________(finish) the tasks that his teacher arranges.
has got into the habit of ________(do) his homework carefully.
’s writing a review for their________(discuss) now.
you imagine what life was like in the________(twenty) century.
not_______(go) for a walk after dinner?
【回答】
finish 2. doing 3. discussion 4. twentieth 5. go
知識點：構詞法
題型：完成句子
