He’ll be ____ astronaut?
A: a
B: an
C: do
A: a
B: an
C: do
举一反三
- He’ll be an astronaut by the time he ________ (be) thirty.
- He’ll be an astronaut by the time he_____thirty.
- He'll be an astronaut by the time he ______ thirty. A: is B: had been C: will he D: is going to be
- 青书学堂: – – Take it easy. He’ll do well.
- He'll do his best ______ （learn）a foreign language well．