He was very nervous and didn't teach very well this morning.(保持句意不变)

问题描述:

He was very nervous and didn't teach very well this morning.(保持句意不变)
He was very nervous and didn't teach very well this morning.(保持句意不变)
He was ______nervous _______ teach very well this morning.

He was very nervous and didn't teach very well this morning.(保持句意不变)
He was (too) nervous (to) teach very well this morning.
今早他太紧张了而没教好.
too...to,太……而不能.