问题

Only when _ 30 years old to learn English.

A:was he; did he begin
B:egan
C:he was; did he begin
D:was he; he began

正确答案是：

同类题型

Some people themselvesby reading; others have been by theradio and television.

1–_______ do you like this book? –Ilike it because it can remind me _______ my childhood.

gh nuclear power may lead to disasters, ______ the nuclear power industry has been operating safely for three decades in China.

just can’t________ them waiting for such a long time.

______you leave now, since here somuch work has not been done yet