(1)What___you___when it began to rain?A are,doing B did,do C were,doing D were,do (2)I was watching TV___the thief came into the house.A when B while C for D because(3)School closed___the day because of the death of Chairman Mao.A to B fo
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(1)What___you___when it began to rain?A are,doing B did,do C were,doing D were,do
(2)I was watching TV___the thief came into the house.
A when B while C for D because
(3)School closed___the day because of the death of Chairman Mao.
A to B for C on D off
(4)___maths is not easy,I want to study it well.
A Although B But C If D So
(5)He was___silence all the afternoon,because he had a sore throat.
A in B with C on D of
1C, 2A, 3C, 4A, 5A
c a c a a
1.c
2.a
3.c
4.a
5.a
What___you___when he came in?
(1)What___you___when it began to rain?A are,doing B did,do C were,doing D were,do (2)I was watching TV___the thief came into the house.A when B while C for D because(3)School closed___the day because of the death of Chairman Mao.A to B fo
What___you___when someone knocked at the door?A.did;do B.were;doing C.do;do D.are;doing什么时候用was/were doing,什么时候用did
(1),
(1)
(1) .
(六)(1)
(1)(2)
(1).(3)
(1) (2)
(1)(2)
(1),(2).
(1)(2)
(1)(2)
(1)(2),
(1) (2)
(1/1000-1)×(1/999-1)×(1/998-1)×...×(1/2-1)
(1-1/4)(1-1/9)(1-1/16).(1-1/10000)