the lazy boy had t____ waking up at 6’clock in the morning.He was late again.
问题描述：
the lazy boy had t____ waking up at 6’clock in the morning.He was late again.
答
如果waking不是拼写错误,而是原题的原词,那么以下填法to be是对的.单填to是错的.
The lazy boy had to be waking up at 6’clock in the morning.He was late again.正确!
如果waking是拼写错误,正确的是wake,单填to正确.
The lazy boy had to wake up at 6’clock in the morning.He was late again.正确!