Test 1
1.can
2.can
3.to be able
4.can
5.to be able
6.can
7.can
8.can
9.to be able
10.can
Test 2
1.can
2.can
3.can
4.may
5.can
6.can
7.can
8.can
9.can
10.can.
Test 3
1.can
2.can
3.may
4.can
5.may
6.can
7.can
8.can
9.can
10.can
Test 4
1.must
2.may
3.must
4.must