I heard Lucy ________ happily in her room when I passed her house.
| A．sing | B．to sing | C．singing | D．sings |
After I had the first English lesson, I became interested in English__
A.day to day
B. day by day
C. day and day
_____will you stay in America? About two weeks.
A.How many B. How often C. How long
I don’t know _____ he will come tomorrow, ______he comes, I’ll tell you.
A.if…whether
B. whether…whether
C. whether..if
I’m ___ in any _____book.
A. interested…interesting
B. interesting…interested
C. interests…interest
____ the boy was walking down the street, the UFO landed.
A.While B.After C. Before